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Translation
King James Version
And knew her not till she had brought forth her firstborn son: and he called his name JESUS.
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KJV (with Strong's)
And G2532 knew G1097 her G846 not G3756 till G2193 G3739 she had brought forth G5088 her G846 firstborn G4416 son G5207: and G2532 he called G2564 his G846 name G3686 JESUS G2424.
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Complete Jewish Bible
but he did not have sexual relations with her until she had given birth to a son, and he named him Yeshua.
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Berean Standard Bible
But he had no union with her until she gave birth to a Son. And he gave Him the name Jesus.
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American Standard Version
and knew her not till she had brought forth a son: and he called his name JESUS.
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World English Bible Messianic
and didn’t know her sexually until she had given birth to her firstborn son. He named him Yeshua.
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Geneva Bible (1599)
But he knew her not, til she had broght forth her first borne sonne, and he called his name JESUS.
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Young's Literal Translation
and did not know her till she brought forth her son--the first-born, and he called his name Jesus.
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In the KJVVerse 23,170 of 31,102

Study This Verse

SUMMARY

Matthew 1:25 brings to a close the foundational narrative of Jesus' miraculous conception and birth, highlighting Joseph's righteous obedience and the unique circumstances surrounding the Incarnation. It affirms Mary's virginity prior to Jesus' birth and records Joseph's fulfillment of the divine command to name the child "JESUS," a name laden with salvific meaning that encapsulates His ultimate mission. This verse solidifies the divine origin and identity of the Messiah, setting the stage for His life and ministry.

CONTEXT

  • Literary Context: Matthew 1:25 serves as the climactic conclusion to the account of Jesus' miraculous conception and birth announcement to Joseph. The preceding verses detail Joseph's initial distress upon discovering Mary's pregnancy, his righteous intention to divorce her quietly (Matthew 1:19). This is dramatically interrupted by an angelic visitation in a dream, where Joseph is informed that Mary's pregnancy is by the Holy Spirit and that she will bear a son named Jesus, who "shall save his people from their sins" (Matthew 1:20-21). The angel's message also explicitly connects this birth to the prophecy of Immanuel from Isaiah 7:14 (Matthew 1:22-23). Joseph's immediate and faithful obedience to the angelic instruction, taking Mary as his wife, is recorded in Matthew 1:24, directly preceding and leading into the actions described in verse 25. This verse thus completes the narrative of Jesus' unique entry into human history, emphasizing the divine orchestration of His birth.

  • Historical & Cultural Context: In ancient Jewish society, betrothal was a legally binding agreement, far more serious than a modern engagement. It could only be dissolved by a formal divorce, and infidelity during this period was considered adultery, punishable by stoning. Joseph's decision to "put her away privily" (Matthew 1:19) demonstrates his compassionate righteousness, seeking to protect Mary from public disgrace. The act of a father naming his child was a significant cultural and legal prerogative, often reflecting the child's identity, destiny, or a prophetic meaning. The term "firstborn son" (prōtótokos) was also culturally significant, conferring certain legal rights and responsibilities in Jewish law, including a double portion of inheritance and the requirement of redemption (e.g., Exodus 13:2). The emphasis on Mary's virginity "till" the birth would have been crucial in a culture where lineage and purity were highly valued, affirming the supernatural nature of Jesus' conception against any human suspicion.

  • Key Themes: Matthew 1:25 contributes significantly to several overarching themes within Matthew's Gospel and the broader biblical narrative. Central is the theme of Divine Sovereignty and Providence, demonstrating God's meticulous orchestration of events to bring about the Incarnation precisely as prophesied. Joseph's Obedience to God's Will is a prominent theme, as his actions exemplify faithful submission even in the face of perplexing circumstances, providing a model for discipleship. The verse strongly affirms the Virgin Birth of Jesus, a foundational doctrine that underscores His unique divine-human nature, conceived by the Holy Spirit rather than by human means, as hinted at in Matthew 1:18. Finally, the naming of Jesus emphasizes His Identity and Mission as Savior, directly fulfilling the angelic declaration in Matthew 1:21, where His name signifies "Yahweh saves." This theme of salvation runs throughout Matthew, culminating in Jesus' atoning work.

EXPOSITION AND ANALYSIS

Key Word Analysis

  • knew (Greek, ginṓskō', G1097): This verb, G1097, refers to "know" in a deep, intimate sense, often used in biblical contexts to denote sexual relations (e.g., Genesis 4:1 KJV). In Matthew 1:25, its use emphatically states that Joseph and Mary did not engage in marital relations prior to Jesus' birth, thereby affirming Mary's virginity during the conception and gestation of Jesus. This is crucial for establishing the supernatural origin of Christ.
  • firstborn (Greek, prōtótokos', G4416): The term G4416 signifies the "first-born" child. While it carries legal and cultural significance in Jewish tradition for the first male child, in this context, its primary function is chronological. It designates Jesus as the first child born to Mary, confirming the completion of the virgin birth and setting the stage for His unique status as the first, and only, child conceived by the Holy Spirit. It does not inherently preclude Mary having other children afterwards, but rather highlights Jesus' initial position.
  • JESUS (Greek, Iēsoûs', G2424): This name, G2424, is of Hebrew origin (Yeshua/Yehoshua), meaning "Yahweh saves" or "The Lord is salvation." Joseph's act of naming the child "JESUS" directly fulfills the angelic command in Matthew 1:21, underscoring the child's divine mission to deliver humanity from sin. The name itself is a theological statement, encapsulating the very purpose of the Incarnation.

Verse Breakdown

  • "And knew her not": This clause directly addresses Joseph's relationship with Mary, stating definitively that they did not consummate their marriage. The Greek verb "knew" (ginṓskō) in this context is a euphemism for sexual intimacy, emphasizing Mary's continued virginity during her pregnancy. This is a critical theological statement affirming the supernatural conception of Jesus, distinct from human procreation.
  • "till she had brought forth her firstborn son": The temporal conjunction "till" (héōs) indicates the duration of Joseph's abstinence, specifying that it continued up to the point of Jesus' birth. The phrase "brought forth her firstborn son" marks the completion of the miraculous birth. The designation "firstborn son" (prōtótokos) identifies Jesus as Mary's initial offspring, signifying His unique position as the first child born to her, and the one conceived by the Holy Spirit.
  • "and he called his name JESUS": This final clause highlights Joseph's decisive act of obedience. By formally naming the child "JESUS," Joseph fulfills the direct command given to him by the angel in Matthew 1:21. This act not only provides Jesus with a legal lineage and identity within Jewish society but also publicly affirms His divine mission as "Yahweh saves," underscoring the salvific purpose of His arrival.

Literary Devices

Matthew 1:25 employs several literary devices to convey its profound theological truths. Narrative Economy is evident in the concise yet impactful phrasing, quickly moving from Joseph's obedience to the birth and naming of Jesus, without dwelling on the details of the birth itself. The phrase "knew her not till" functions as a powerful Emphasis on Mary's virginity at the time of Jesus' conception and birth, a theological cornerstone. This precise temporal marker serves to underscore the unique, supernatural nature of Jesus' origin. The verse also implicitly uses Fulfillment Language, bringing to a close the prophetic pronouncements made earlier in the chapter regarding Immanuel, "God with us" (Matthew 1:23). Finally, the entire verse functions as a Theological Statement, succinctly summarizing the miraculous circumstances of Jesus' entry into the world and His divinely appointed identity and mission as Savior.

THEOLOGICAL AND THEMATIC CONNECTIONS

Matthew 1:25 is a cornerstone for understanding the Incarnation, affirming the unique nature of Jesus Christ as both fully God and fully man. Joseph's actions underscore the divine orchestration of salvation history, where human obedience aligns with God's perfect plan. The "till" clause, while often debated regarding Mary's later virginity, unequivocally establishes the virgin birth of Jesus, a theological necessity for His sinless nature and His ability to be the perfect sacrifice for humanity. The naming of Jesus, meaning "Yahweh saves," is theologically profound, immediately declaring His ultimate purpose and identity as the promised Messiah who would deliver His people from their sins. This verse thus serves as a foundational declaration of Christ's identity and salvific mission from the very outset of Matthew's Gospel.

REFLECTION AND APPLICATION

Matthew 1:25 offers profound lessons for contemporary believers, inviting us to reflect on the nature of faith, obedience, and the miraculous. Joseph's quiet, yet profound, obedience in the face of societal scandal and personal perplexity serves as a powerful example. He chose to trust God's unconventional plan over his own understanding or cultural expectations, demonstrating that true righteousness often involves humble submission to divine revelation. This challenges us to consider where God might be calling us to step out in faith, even when His path seems counter-intuitive or demands personal sacrifice. The meticulous way God brought about the birth of His Son, ensuring His divine conception and proper naming, reminds us of God's perfect sovereignty and timing in all circumstances. We are called to cultivate a deep trust in His unfailing plan, even when the details are not fully clear. Furthermore, this verse compels us to marvel at the unique person of Jesus Christ—fully God and fully man, born of a virgin—a truth foundational to His sinless life and His ability to be the perfect sacrifice for humanity's sins. It calls us to worship the God who condescended to enter human history in such a miraculous and humble way, all for our salvation.

Questions for Reflection

  • How does Joseph's obedience to God's seemingly unconventional plan challenge your own willingness to trust and obey God in difficult or perplexing situations?
  • What does the phrase "knew her not till she had brought forth her firstborn son" reveal about the unique nature of Jesus' birth, and how does this truth deepen your understanding of His identity?
  • Considering that "JESUS" means "Yahweh saves," how does this name inform your understanding of Christ's mission and your personal need for His salvation?

FAQ

Did Mary have other children after Jesus?

Answer: Matthew 1:25 states that Joseph "knew her not till she had brought forth her firstborn son." The word "till" (Greek: héōs) indicates that the state of not knowing (i.e., not having sexual relations) continued up to the point of Jesus' birth. While this clause strongly affirms Mary's virginity before and during Jesus' conception and birth, it does not definitively preclude the possibility of marital relations after Jesus' birth. The term "firstborn" (Greek: prōtótokos) simply means the first child born to a mother and does not inherently imply that there were no subsequent children. The New Testament itself refers to Jesus having "brothers" and "sisters" on multiple occasions (e.g., Matthew 13:55-56, Mark 6:3, Galatians 1:19). While some theological traditions interpret these references as referring to cousins or step-siblings, the most straightforward reading of the Greek text, especially in light of the "till" and "firstborn" clauses, suggests that Mary and Joseph likely had other children after Jesus. The crucial theological point of Matthew 1:25 is the confirmation of Jesus' unique virgin birth, establishing His divine origin.

Why was it important for Joseph to name Jesus?

Answer: Joseph's act of naming Jesus was profoundly significant for several reasons. Firstly, it demonstrated his obedience to God's direct command. The angel explicitly instructed Joseph to "call his name JESUS" (Matthew 1:21). Joseph's faithful compliance underscored his role in God's plan. Secondly, by naming Jesus, Joseph formally acknowledged Jesus as his legal son, even though he was not His biological father. This was crucial for establishing Jesus' legal lineage through Joseph back to King David (Matthew 1:1-17), fulfilling Old Testament prophecies about the Messiah's Davidic descent. In Jewish culture, the father's naming of the child conferred legal identity and rights. Thirdly, the name "JESUS" itself (meaning "Yahweh saves") was integral to the child's identity and mission. Joseph's act of naming publicly declared Jesus' purpose as the Savior who would "save his people from their sins" (Matthew 1:21), aligning His very name with His divine destiny.

CHRIST-CENTERED FULFILLMENT

Matthew 1:25 is a pivotal verse in the Christ-centered narrative, directly pointing to the unique person and salvific work of Jesus. The affirmation of Mary's virginity until Jesus' birth underscores the miraculous, supernatural nature of His conception, essential for His sinless humanity. Unlike all other humans, Jesus did not inherit a sin nature, as He was conceived by the Holy Spirit, not through the ordinary course of human procreation. This divine origin is foundational to His role as the perfect, unblemished Lamb of God, capable of bearing the sins of the world (John 1:29). Furthermore, Joseph's act of naming Him "JESUS"—meaning "Yahweh saves"—is a direct fulfillment of the angelic prophecy and encapsulates the very essence of the gospel. It declares that the child born of Mary is none other than the promised Messiah, the Lord Himself, come to deliver humanity from the bondage of sin and death. This name foreshadows His entire life's work, culminating in His atoning death and resurrection, through which He accomplished the salvation His name proclaims. Thus, Matthew 1:25 is not merely a historical record but a profound theological statement, revealing Jesus as the divinely appointed Savior, uniquely qualified to reconcile humanity to God through His perfect life and sacrificial death (Hebrews 4:15; Romans 5:8). His humble entry into the world, as described here, sets the stage for His ultimate exaltation, where "every knee should bow... and that every tongue should confess that Jesus Christ is Lord" (Philippians 2:9-11).

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Commentary on Matthew 1 verses 18–25

I. II. Main points1. 2. Sub-points(1.) (2.) Details[1.] [2.] Fine details

The mystery of Christ's incarnation is to be adored, not pried into. If we know not the way of the Spirit in the formation of common persons, nor how the bones are formed in the womb of any one that is with child (Ecc 11:5), much less do we know how the blessed Jesus was formed in the womb of the blessed virgin. When David admires how he himself was made in secret, and curiously wrought (Psa 139:13-16), perhaps he speaks in the spirit of Christ's incarnation. Some circumstances attending the birth of Christ we find here which are not in Luke, though it is more largely recorded here. Here we have,

I. Mary's espousal to Joseph. Mary, the mother of our Lord, was espoused to Joseph, not completely married, but contracted; a purpose of marriage solemnly declared in words de futuro - that regarding the future, and a promise of it made if God permit. We read of a man who has betrothed a wife and has not taken her, Deu 20:7. Christ was born of a virgin, but a betrothed virgin, 1. To put respect upon the marriage state, and to recommend it as honourable among all, against that doctrine of devils which forbids to marry, and places perfection in the single state. Who more highly favoured than Mary was in her espousals? 2. To save the credit of the blessed virgin, which otherwise would have been exposed. It was fit that her conception should be protected by a marriage, and so justified in the eye of the world. One of the ancients says, It was better it should be asked, Is not this the son of a carpenter? than, Is not this the son of a harlot? 3. That the blessed virgin might have one to be the guide of her youth, the companion of her solitude and travels, a partner in her cares, and a help meet for her. Some think that Joseph was now a widower, and that those who are called the brethren of Christ (Mat 13:55), were Joseph's children by a former wife. This is the conjecture of many of the ancients. Joseph was just man, she a virtuous woman. Those who are believers should not be unequally yoked with unbelievers: but let those who are religious choose to marry with those who are so, as they expect the comfort of the relation, and God's blessing upon them in it. We may also learn, from this example, that it is good to enter into the married state with deliberation, and not hastily - to preface the nuptials with a contract. It is better to take time to consider before than to find time to repent after.

II. Her pregnancy of the promised seed; before they came together, she was found with child, which really was of the Holy Ghost. The marriage was deferred so long after the contract that she appeared to be with child before the time came for the solemnizing of the marriage, though she was contracted before she conceived. Probably, it was after her return from her cousin Elizabeth, with whom she continued three months (Luk 1:56), that she was perceived by Joseph to be with child, and did not herself deny it. Note, Those in whom Christ is formed will show it: it will be found to be a work of God which he will own. Now we may well imagine, what a perplexity this might justly occasion to the blessed virgin. She herself knew the divine original of this conception; but how could she prove it? She would be dealt with as a harlot. Note, After great and high advancements, lest we should be puffed up with them, we must expect something or other to humble us, some reproach, as a thorn in the flesh, nay, as a sword in the bones. Never was any daughter of Eve so dignified as the Virgin Mary was, and yet in danger of falling under the imputation of one of the worse crimes; yet we do not find that she tormented herself about it; but, being conscious of her own innocence, she kept her mind calm and easy, and committed her cause to him that judgeth righteously. Note, those who take care to keep a good conscience may cheerfully trust God with the keeping of their good names, and have reason to hope that he will clear up, not only their integrity, but their honour, as the sun at noon day.

III. Joseph's perplexity, and his care what to do in this case. We may well imagine what a great trouble and disappointment it was to him to find one he had such an opinion of, and value for, come under the suspicion of such a heinous crime. Is this Mary? He began to think, "How may we be deceived in those we think best of! How may we be disappointed in what we expect most from!" He is loth to believe so ill a thing of one whom he believed to be so good a woman; and yet the matter, as it is too bad to be excused, is also too plain to be denied. What a struggle does this occasion in his breast between that jealousy which is the rage of man, and is cruel as the grave, on the one hand, and that affection which he has for Mary on the other!

Observe, 1. The extremity which he studied to avoid. He was not willing to make her a public example. He might have done so; for, by the law, a betrothed virgin, if she played the harlot, was to be stoned to death, Deu 22:23, Deu 22:24. But he was not willing to take the advantage of the law against her; if she be guilty, yet it is not known, nor shall it be known from him. How different was the spirit which Joseph displayed from that of Judah, who in a similar case hastily passed that severe sentence, Bring her forth and let her be burnt! Gen 38:24. How good it is to think on things, as Joseph did here! Were there more of deliberation in our censures and judgments, there would be more of mercy and moderation in them. Bringing her to punishment is here called making her a public example; which shows what is the end to be aimed at in punishment - the giving of warning to others: it is in terrorem - that all about may hear and fear. Smite the scorner, and the simple will beware.

Some persons of a rigorous temper would blame Joseph for his clemency: but it is here spoken of to his praise; because he was a just man, therefore he was not willing to expose her. He was a religious, good man; and therefore inclined to be merciful as God is, and to forgive as one that was forgiven. In the case of the betrothed damsel, if she were defiled in the field, the law charitably supposed that she cried out (Deu 22:26), and she was not to be punished. Some charitable construction or other Joseph will put upon this matter; and herein he is a just man, tender of the good name of one who never before had done anything to blemish it. Note, It becomes us, in many cases, to be gentle towards those that come under suspicion of having offended, to hope the best concerning them, and make the best of that which at first appears bad, in hopes that it may prove better. Summum just summa injuria - The rigour of the law is (sometimes) the height of injustice. That court of conscience which moderates the rigour of the law we call a court of equity. Those who are found faulty were perhaps overtaken in the fault, and are therefore to be restored with the spirit of meekness; and threatening, even when just, must be moderated.

2.The expedient he found out for avoiding this extremity. He was minded to put her away privily, that is, to give a bill of divorce into her hand before two witnesses, and so to hush up the matter among themselves. Being a just man, that is, a strict observer of the law, he would not proceed to marry her, but resolved to put her away; and yet, in tenderness for her, determined to do it as privately as possible. Note, The necessary censures of those who have offended ought to be managed without noise. The words of the wise are heard in quiet. Christ himself shall not strive nor cry. Christian love and Christian prudence will hide a multitude of sins, and great ones, as far as may be done without having fellowship with them.

IV. Joseph's discharge from this perplexity by an express sent from heaven, Mat 1:20, Mat 1:21. While he thought on these things and knew not what to determine, God graciously directed him what to do, and made him easy. Note, Those who would have direction from God must think on things themselves, and consult with themselves. It is the thoughtful, not the unthinking, whom God will guide. When he was at a loss, and had carried the matter as far as he could in his own thoughts, then God came in with advice. Note, God's time to come in with instruction to his people is when they are nonplussed and at a stand. God's comforts most delight the soul in the multitude of its perplexed thoughts. The message was sent to Joseph by an angel of the Lord, probably the same angel that brought Mary the tidings of the conception - the angel Gabriel. Now the intercourse with heaven, by angels, with which the patriarchs had been dignified, but which had been long disused, begins to be revived; for, when the First-begotten is to be brought into the world, the angels are ordered to attend his motions. How far God may now, in an invisible way, make use of the ministration of angels, for extricating his people out of their straits, we cannot say; but this we are sure of, they are all ministering spirits for their good. This angel appeared to Joseph in a dream when he was asleep, as God sometimes spoke unto the fathers. When we are most quiet and composed we are in the best frame to receive the notices of the divine will. The Spirit moves on the calm waters. This dream, no doubt, carried its own evidence along with it that it was of God, and not the production of a vain fancy. Now,

1.Joseph is here directed to proceed in his intended marriage. The angel calls him, Joseph, thou son of David; he puts him in mind of his relation to David, that he might be prepared to receive this surprising intelligence of his relation to the Messiah, who, every one knew, was to be a descendant from David. Sometimes, when great honours devolve upon those who have small estates, they care not for accepting them, but are willing to drop them; it was therefore requisite to put this poor carpenter in mind of his high birth: "Value thyself. Joseph, thou art that son of David through whom the line of the Messiah is to be drawn." We may thus say to every true believer, "Fear not, thou son of Abraham, thou child of God; forget not the dignity of thy birth, thy new birth." Fear not to take Mary for thy wife; so it may be read. Joseph, suspecting she was with child by whoredom, was afraid of taking her, lest he should bring upon himself either guilt or reproach. No, saith God, Fear not; the matter is not so. Perhaps Mary had told him that she was with child by the Holy Ghost, and he might have heard what Elizabeth said to her (Luk 1:43), when she called her the mother of her Lord; and, if so, he was afraid of presumption in marrying one so much above him. But, from whatever cause his fears arose, they were all silenced with this word, Fear not to take unto thee Mary thy wife. Note, It is a great mercy to be delivered from our fears, and to have our doubts resolved, so as to proceed in our affairs with satisfaction.

2.He is here informed concerning that holy thing with which his espoused wife was now pregnant. That which is conceived in her is of a divine original. He is so far from being in danger of sharing in an impurity by marrying her, that he will thereby share in the highest dignity he is capable of. Two things he is told,

(1.)That she had conceived by the power of the Holy Ghost; not by the power of nature. The Holy Spirit, who produced the world, now produced the Saviour of the world, and prepared him a body, as was promised him, when he said, Lo, I come, Heb 10:5. Hence he is said to be made of a woman (Gal 4:4), and yet to be that second Adam that is the Lord from heaven, Co1 15:47. He is the Son of God, and yet so far partakes of the substance of his mother as to be called the fruit of her womb, Luk 1:42. It was requisite that is conception should be otherwise than by ordinary generation, that so, so though he partook of the human nature, yet he might escape the corruption and pollution of it, and not be conceived and shapen in iniquity. Histories tell us of some who vainly pretended to have conceived by a divine power, as the mother of Alexander; but none ever really did so, except the mother of our Lord. His name in this, as in other things, is Wonderful. We do not read that the virgin Mary did herself proclaim the honour done to her; but she hid it in her heart, and therefore God sent an angel to attest it. Those who seek not their own glory shall have the honour that comes from God; it is reserved for the humble.

(2.)That she should bring forth the Saviour of the world (Mat 1:21). She shall bring forth a Son; what he shall be is intimated,

[1.]In the name that should be given to her Son: Thou shalt call his name Jesus, a Saviour. Jesus is the same name with Joshua, the termination only being changed, for the sake of conforming it to the Greek. Joshua is called Jesus (Act 7:45; Heb 4:8), from the Seventy. There were two of that name under the Old Testament, who were both illustrious types of Christ, Joshua who was Israel's captain at their first settlement in Canaan, and Joshua who was their high priest at their second settlement after the captivity, Zac 6:11, Zac 6:12. Christ is our Joshua; both the Captain of our salvation, and the High Priest of our profession, and, in both, our Saviour - a Joshua who comes in the stead of Moses, and does that for us which the law could not do, in that it was weak. Joshua had been called Hosea, but Moses prefixed the first syllable of the name Jehovah, and so made it Jehoshua (Num 13:16), to intimate that the Messiah, who was to bear that name, should be Jehovah; he is therefore able to save to the uttermost, neither is there salvation in any other.

[2.]In the reason of that name: For he shall save his people from their sins; not the nation of the Jews only (he came to his own, and they received him not), but all who were given him by the Father's choice, and all who had given themselves to him by their own. He is a king who protects his subjects, and, as the judges of Israel of old, works salvation for them. Note, those whom Christ saves he saves from their sins; from the guilt of sin by the merit of his death, from the dominion of sin by the Spirit of his grace. In saving them from sin, he saves them from wrath and the curse, and all misery here and hereafter. Christ came to save his people, not in their sins, but from their sins; to purchase for them, not a liberty to sin, but a liberty from sins, to redeem them from all iniquity (Tit 2:14); and so to redeem them from among men (Rev 14:4) to himself, who is separate from sinners. So that those who leave their sins, and give up themselves to Christ as his people, are interested in the Saviour, and the great salvation which he has wrought out, Rom 11:26.

V. The fulfilling of the scripture in all this. This evangelist, writing among the Jews, more frequently observes this than any other of the evangelists. Here the Old Testament prophecies had their accomplishment in our Lord Jesus, by which it appears that this was he that should come, and we are to look for no other; for this was he to whom all the prophets bore witness. Now the scripture that was fulfilled in the birth of Christ was that promise of a sign which God gave to king Ahaz (Isa 7:14), Behold a virgin shall conceive; where the prophet, encouraging the people of God to hope for the promised deliverance from Sennacherib's invasion, directs them to look forward to the Messiah, who was to come of the people of the Jews, and the house of David; whence it was easy to infer, that though that people and that house were afflicted, yet neither the one nor the other could be abandoned to ruin, so long as God had such an honour, such a blessing, in reserve for them. The deliverances which God wrought for the Old Testament church were types and figures of the great salvation by Christ; and, if God will do the greater, he will not fail to do the less.

The prophecy here quoted is justly ushered in with a Behold, which commands both attention and admiration; for we have here the mystery of godliness, which is, without controversy, great, that God was manifested in the flesh.

1.The sign given is that the Messiah shall be born of a virgin. A virgin shall conceive, and, by her, he shall be manifested in the flesh. The word Almah signifies a virgin in the strictest sense, such as Mary professes herself to be (Luk 1:34), I know not a man; nor had it been any such wonderful sign as it was intended for, if it had been otherwise. It was intimated from the beginning that the Messiah should be born of a virgin, when it was said that he should be the seed of the woman; so the seed of the woman as not to be the seed of any man. Christ was born of a virgin not only because his birth was to be supernatural, and altogether extraordinary, but because it was to be spotless, and pure, and without any stain of sin. Christ would be born, not of an empress or queen, for he appeared not in outward pomp or splendour, but of a virgin, to teach us spiritual purity, to die to all the delights of sense, and so to keep ourselves unspotted from the world and the flesh that we may be presented chaste virgins to Christ.

2.The truth proved by this sign is, that he is the Son of God, and the Mediator between God and man: for they shall call his name Immanuel; that is, he shall be Immanuel; and when it is said, He shall be called, it is meant, he shall be, the Lord our righteousness. Immanuel signifies God with us; a mysterious name, but very precious; God incarnate among us, and so God reconcilable to us, at peace with us, and taking us into covenant and communion with himself. The people of the Jews had God with them, in types and shadows, dwelling between the cherubim; but never so as when the Word was made flesh - that was the blessed Shechinah. What a happy step is hereby taken toward the settling of a peace and correspondence between God and man, that the two natures are thus brought together in the person of the Mediator! by this he became an unexceptionable referee, a days-man, fit to lay his hand upon them both, since he partakes of the nature of both. Behold, in this, the deepest mystery, and the richest mercy, that ever was. By the light of nature, we see God as a God above us; by the light of the law, we see him as a God against us; but by the light of the gospel, we see him as Immanuel, God with us, in our own nature, and (which is more) in our interest. Herein the Redeemer commended his love. With Christ's name, Immanuel, we may compare the name given to the gospel church (Eze 48:35). Jehovah Shammah - The Lord is there; the Lord of hosts is with us.

Nor is it improper to say that the prophecy which foretold that he should be called Immanuel was fulfilled, in the design and intention of it, when he was called Jesus; for if he had not been Immanuel - God with us, he could not have been Jesus - a Saviour; and herein consists the salvation he wrought out, in the bringing of God and man together; this was what he designed, to bring God to be with us, which is our great happiness, and to bring us to be with God, which is our great duty.

VI. Joseph's obedience to the divine precept (Mat 1:24). Being raised from sleep by the impression which the dream made upon him, he did as the angel of the Lord had bidden him, though it was contrary to his former sentiments and intentions; he took unto him his wife; he did is speedily, without delay, and cheerfully, without dispute; he was not disobedient to the heavenly vision. Extraordinary direction like this we are not now to expect; but God has still ways of making known his mind in doubtful cases, by hints of providence, debates of conscience, and advice of faithful friends; by each of these, applying the general rules of the written word, we should, therefore, in all the steps of our life, particularly the great turns of it, such as this of Joseph's, take direction from God, and we shall find it safe and comfortable to do as he bids us.

VII. The accomplishment of the divine promise (Mat 1:25). She brought forth her first-born son. The circumstances of it are more largely related, Luk 2:1, etc. Note, That which is conceived of the Holy Ghost never proves abortive, but will certainly be brought forth in its season. What is of the will of the flesh, and of the will of man, often miscarries; but, if Christ be formed in the soul, God himself has begun the good work which he will perform; what is conceived in grace will no doubt be brought forth in glory.

It is here further observed, 1. That Joseph, though he solemnized the marriage with Mary, his espoused wife, kept at a distance from her while she was with child of this Holy thing; he knew her not till she had brought him forth. Much has been said concerning the perpetual virginity of our Lord: Jerome was very angry with Helvidius for denying it. It is certain that it cannot be proved from scripture. Dr. Whitby inclines to think that when it is said, Joseph knew her not till she had brought forth her first-born, it is intimated that, afterwards, the reason ceasing, he lived with her, according to the law, Exo 21:10. 2. That Christ was the first-born; and so he might be called though his mother had not any other children after him, according to the language of scripture. Nor is it without a mystery that Christ is called her first-born, for he is the first-born of every creature, that is, the Heir of all things; and he is the first-born among many brethren, that in all things he may have the pre-eminence. 3. That Joseph called his name Jesus, according to the direction given him. God having appointed him to be the Saviour, which was intimated in his giving him the name Jesus, we must accept of him to be our Saviour, and, in concurrence with that appointment, we must call him Jesus, our Saviour.

Matthew Henry (1662–1714) — Commentary on the Whole Bible. This section covers verses 18–25. Public domain.
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Ignatius of Antioch (as quoted by Origen, AD 235)AD 108
Origen's Homilies on Luke
For what reason did God, deciding that the Savior should be born from a virgin, not choose a virgin who was not betrothed? Might it have been, then, an economy for her to conceive while having a betrothed, so that it might not appear as a disgrace upon her body for her to conceive? For it is rightly written in one of the letters of a certain martyr—I mean Ignatius, the second bishop of Antioch after the blessed Peter, who fought with beasts in Rome during the persecution—“and the virginity of Mary escaped the notice of the ruler of this age.” So, if it had not been for what seemed to be a marriage, it would not have escaped his notice, but the ruler of this age would have known that Mary, having never slept with a man, conceived, and thus the conception must be divine. The Savior wished through the entire economy to elude the devil, and indeed ordered the disciples not to make him manifest.
Ephrem the SyrianAD 373
Commentary on Tatian's Diatessaron, page 63
Because there are those who dare to say that Mary cohabited with Joseph after she bore the Redeemer, we reply, 'How would it have been possible for her who was the home of the indwelling of the Spirit, whom the divine power overshadowed, that she be joined by a mortal being, and gave birth filled with birthpangs, in the image of the primeval curse?' If Mary was blessed of women, she would have been exempt from the curse from the beginning, and from the bearing of children in birthpangs and curses. It would be impossible therefore to call one who gave birth with these birthpangs blessed.
Basil of CaesareaAD 379
Homily: On the holy generation of Christ 5; PG 31, 1468 B
For "he did not know her" - it says - "until she gave birth to a Son, her firstborn." But this could make one suppose that Mary, after having offered in all her purity her own service in giving birth to the Lord, by virtue of the Holy Spirit, did not subsequently refrain from normal conjugal relations. That would not have affected the teaching of our religion at all, because Mary's virginity was necessary until the service of the Incarnation, and what happened afterward need not be investigated in order to affect the doctrine of the mystery. But since the lovers of Christ [that is, the faithful] do not allow themselves to hear that the Mother of God ceased at a given moment to be a virgin, we consider their testimony sufficient.
Didymus the BlindAD 398
The Trinity 3:4
It helps us to understand the terms 'first-born' and 'only-begotten' when the Evangelist tells that Mary remained a virgin 'until she brought forth her first-born son' [Matt. 1:25]; for neither did Mary, who is to be honored and praised above all others, marry anyone else, nor did she ever become the Mother of anyone else, but even after childbirth she remained always and forever an immaculate virgin
Epiphanius of SalamisAD 403
The Panarion of Epiphanius of Salamis: De fide. Books II and III, page 620, 7.1
For I have heard from someone that certain persons are venturing to say that she had marital relations after the Savior's birth. And I am not surprised. The ignorance of persons who do not know the sacred scriptures well and have not consulted histories, always turns them to one thing after another, and distracts anyone who wants to track down something about the truth out of his own head. To begin with, when the Virgin was entrusted to Joseph - lots having compelled her to take this step - she was not entrusted to him for marriage, since he was a widower. He was called her husband because of the Law, but it plainly follows from the Jewish tradition that the Virgin was not entrusted to him for matrimony. It was for the preservation of her virginity in witness to the things to come - [a witness] that Christ's incarnation was nothing spurious but was truly attested, as without a man's seed but truly brought about by the Holy Spirit.
Chromatius of AquileiaAD 406
Tractate on Matthew 3.1
But concerning what the Evangelist said, "And he did not know her till she had borne her firstborn son," not a few careless people insist on asking whether after the Lord’s birth the holy mother Mary had relations with Joseph. But this is not admissible on the grounds of either faith or truth. Far be it indeed that after the sacrament of so great a mystery and after the birth of the sublime Lord, one should believe that the Virgin Mary was intimate with a man. Remember that Miriam the prophetess of the Old Testament (the sister of Moses and Aaron) remained a virgin unsullied by man, having beheld the light of heavenly signs after the plagues of Egypt and the parting of the Red Sea and the Lord’s glory going in advance and seen in a pillar of fire and clouds. It is not plausible therefore that the Mary of the Gospel, a virgin bearing God, who beheld God’s glory not in a cloud but was worthy of carrying him in her virginal womb, had relations with a man. Noah, who was made worthy to converse with God, declared that he would abstain from the conjugal need. Moses, after hearing God calling him from the bush, abstained from conjugal relations. Now are we to believe that Joseph, the man who always did what was right, had relations with holy Mary after the birth of the Lord?
John ChrysostomAD 407
Homily 5 on Matthew, Section 5
And when he had taken her, "he knew her not, till she had brought forth her first-born Son." He has here used the word "till," not that you should suspect that afterwards he did know her, but to inform you that before the birth the Virgin was wholly untouched by man. But why then, it may be said, has he used the word, "till"? Because it is usual in Scripture often to do this, and to use this expression without reference to limited times. For so with respect to the ark likewise, it is said, "The raven returned not till the earth was dried up." [Genesis 8:7] And yet it did not return even after that time. And when discoursing also of God, the Scripture says, "From age until age You are," not as fixing limits in this case. And again when it is preaching the Gospel beforehand, and saying, "In his days shall righteousness flourish, and abundance of peace, till the moon be taken away," it does not set a limit to this fair part of creation. So then here likewise, it uses the word "till," to make certain what was before the birth, but as to what follows, it leaves you to make the inference. Thus, what it was necessary for you to learn of Him, this He Himself has said; that the Virgin was untouched by man until the birth; but that which both was seen to be a consequence of the former statement, and was acknowledged, this in its turn he leaves for you to perceive; namely, that not even after this, she having so become a mother, and having been counted worthy of a new sort of travail, and a child-bearing so strange, could that righteous man ever have endured to know her. For if he had known her, and had kept her in the place of a wife, how is it that our Lord [John 19:27] commits her, as unprotected, and having no one, to His disciple, and commands him to take her to his own home?

How then, one may say, are James and the others called His brethren? In the same kind of way as Joseph himself was supposed to be husband of Mary. For many were the veils provided, that the birth, being such as it was, might be for a time screened. Wherefore even John so called them, saying, "For neither did His brethren believe in Him."
Jerome (as quoted by Aquinas, AD 1274)AD 420
Catena Aurea by Aquinas
(Cont. Helvid. c. 5.) Helvidius is at much superfluous trouble to make this word know refer to carnal knowledge rather than to acquaintance, as though any had ever denied that; or as if the follies to which he replies had ever occurred to any person of common understanding. He then goes on to say, that the adverb 'until' denotes a fixed time when that should take place, which had not taken place before; so that here from the words, He knew her not until she had brought forth her first-born Son, it is clear, he says, that after that he did know her. And in proof of this he heaps together many instances from Scripture. To all this we answer, that the word 'until' is to be understood in two senses in Scripture. And concerning the expression, knew her not, he has himself shown, that it must be referred to carnal knowledge, none doubting that it is often used of acquaintance, as in that, The child Jesus tarried behind in Jerusalem, and His parents knew not of it. (Luke 2:43.) In like manner 'until' often denotes in Scripture, as he has shown, a fixed period, but often also an infinite time, as in that, Even to your old age I am He. (Isa. 46:4.) Will God then cease to be when they are grown old? Also the Saviour in the Gospel, Lo, I am with you always, even to the end of this world. (Mat. 28:20.) Will He then leave His disciples at the end of the world? Again, the Apostle says, He must reign till He has put His enemies under His feel. (1 Cor. 15:25.) Be it understood then, that that which if it had not been written might have been doubted of, is expressly declared to us; other things are left to our own understandingc. So here the Evangelist informs us, in that wherein there might have been room for error, that she was not known by her husband until the birth of her Son, that we might thence infer that much less was she known afterwards.

(cont. Helvid. 8.) Lastly, I would ask, Why then did Joseph abstain at all up to the day of birth? He will surely answer, Because of the Angel's words, That which is born in her, &c. He then who gave so much heed to a vision as not to dare to touch his wife, would he, after he had heard the shepherds, seen the Magi, and known so many miracles, dare to approach the temple of God, the seat of the Holy Ghost, the Mother of his Lord?

From the words, her firstborn Son, some most erroneously suspect that Mary had other sons, saying that first-born can only be said of one that has brethren. But this is the manner of Scripture, to call the first-born not only one who is followed by brethren, but the first-birth of the mother.

(Cont. Helvid. 10.) For if he only was first-born who was followed by other brethren, then no first-birth could be due to the Priests, till such time as the second birth took place.
JeromeAD 420
Commentary on Matthew
(Verse 25.) And he took his wife, and did not know her until she had brought forth her firstborn son: and he called his name Jesus. From this passage, some very perverse people suspect and say that Mary had other children, arguing that the term firstborn is only used when someone has siblings. However, this is contrary to the custom in the divine scriptures, where the term firstborn is not applied to someone who has siblings, but to the one who is born first. Read the aforementioned book against Helvidius.
JeromeAD 420
Against Helvidius
The passage for discussion now is, "And Joseph arose from his sleep, and did as the angel of the Lord commanded him, and took unto him his wife and knew her not till she had brought forth a son, and he called his name Jesus." Here, first of all, it is quite needless for our opponent to show so elaborately that the word know has reference to coition, rather than to intellectual apprehension: as though anyone denied it, or any person in his senses could ever imagine the folly which Helvidius takes pains to refute. Then he would teach us that the adverb till implies a fixed and definite time, and when that is fulfilled, he says the event takes place which previously did not take place, as in the case before us, "and knew her not till she had brought forth a son." It is clear, says he, that she was known after she brought forth, and that that knowledge was only delayed by her engendering a son. To defend his position he piles up text upon text, waves his sword like a blind-folded gladiator, rattles his noisy tongue, and ends with wounding no one but himself.

Our reply is briefly this — the words knew and till in the language of Holy Scripture are capable of a double meaning. As to the former, he himself gave us a dissertation to show that it must be referred to sexual intercourse, and no one doubts that it is often used of the knowledge of the understanding, as, for instance, "the boy Jesus tarried behind in Jerusalem, and his parents knew it not." Now we have to prove that just as in the one case he has followed the usage of Scripture, so with regard to the word till he is utterly refuted by the authority of the same Scripture, which often denotes by its use a fixed time (he himself told us so), frequently time without limitation, as when God by the mouth of the prophet says to certain persons, [Isaiah 46:4] "Even to old age I am he." Will He cease to be God when they have grown old? And the Saviour in the Gospel tells the Apostles, [Matthew 28:20] "Lo, I am with you always, even unto the end of the world." Will the Lord then after the end of the world has come forsake His disciples, and at the very time when seated on twelve thrones they are to judge the twelve tribes of Israel will they be bereft of the company of their Lord? Again Paul the Apostle writing to the Corinthians says, "Christ the first-fruits, afterward they that are Christ's, at his coming. Then comes the end, when he shall have delivered up the kingdom to God, even the Father, when he shall have put down all rule, and all authority and power. For he must reign, till he has put all enemies under his feet." Granted that the passage relates to our Lord's human nature, we do not deny that the words are spoken of Him who endured the cross and is commanded to sit afterwards on the right hand. What does he mean then by saying, "for he must reign, till he has put all enemies under his feet"? Is the Lord to reign only until His enemies begin to be under His feet, and once they are under His feet will He cease to reign? Of course His reign will then commence in its fullness when His enemies begin to be under His feet. David also in the fourth Song of Ascents speaks thus, "Behold, as the eyes of servants look unto the hand of their master, as the eyes of a maiden unto the hand of her mistress, so our eyes look unto the Lord our God, until he have mercy upon us." Will the prophet, then, look unto the Lord until he obtain mercy, and when mercy is obtained will he turn his eyes down to the ground? Although elsewhere he says, "My eyes fail for your salvation, and for the word of your righteousness." I could accumulate countless instances of this usage, and cover the verbosity of our assailant with a cloud of proofs; I shall, however, add only a few, and leave the reader to discover like ones for himself.

The word of God says in Genesis, "And they gave unto Jacob all the strange gods which were in their hand, and the rings which were in their ears; and Jacob hid them under the oak which was by Shechem, and lost them until this day." Likewise at the end of Deuteronomy, [Deuteronomy 34:5-6] "So Moses the servant of the Lord died there in the land of Moab, according to the word of the Lord. And he buried him in the valley, in the land of Moab over against Beth-peor: but no man knows of his sepulchre unto this day." We must certainly understand by this day the time of the composition of the history, whether you prefer the view that Moses was the author of the Pentateuch or that Ezra re-edited it. In either case I make no objection. The question now is whether the words unto this day are to be referred to the time of publishing or writing the books, and if so it is for him to show, now that so many years have rolled away since that day, that either the idols hidden beneath the oak have been found, or the grave of Moses discovered; for he obstinately maintains that what does not happen so long as the point of time indicated by until and unto has not been attained, begins to be when that point has been reached. He would do well to pay heed to the idiom of Holy Scripture, and understand with us, (it was here he stuck in the mud) that some things which might seem ambiguous if not expressed are plainly intimated, while others are left to the exercise of our intellect. For if, while the event was still fresh in memory and men were living who had seen Moses, it was possible for his grave to be unknown, much more may this be the case after the lapse of so many ages. And in the same way must we interpret what we are told concerning Joseph. The Evangelist pointed out a circumstance which might have given rise to some scandal, namely, that Mary was not known by her husband until she was delivered, and he did so that we might be the more certain that she from whom Joseph refrained while there was room to doubt the import of the vision was not known after her delivery.

In short, what I want to know is why Joseph refrained until the day of her delivery? Helvidius will of course reply, because he heard the angel say, [Matthew 1:20] "that which is conceived in her is of the Holy Ghost." And in turn we rejoin that he had certainly heard him say, [Matthew 1:20] "Joseph, thou son of David, fear not to take unto you Mary your wife." The reason why he was forbidden to forsake his wife was that he might not think her an adulteress. Is it true then, that he was ordered not to have intercourse with his wife? Is it not plain that the warning was given him that he might not be separated from her? And could the just man dare, he says, to think of approaching her, when he heard that the Son of God was in her womb? Excellent! We are to believe then that the same man who gave so much credit to a dream that he did not dare to touch his wife, yet afterwards, when he had learned from the shepherds that the angel of the Lord had come from heaven and said to them, "Be not afraid: for behold I bring you good tidings of great joy which shall be to all people, for there is born to you this day in the city of David a Saviour, which is Christ the Lord;" and when the heavenly host had joined with him in the chorus [Luke 2:14] "Glory to God in the highest, and on earth peace among men of good will;" and when he had seen just Simeon embrace the infant and exclaim, "Now let your servant depart, O Lord, according to your word in peace: for my eyes have seen your salvation;" and when he had seen Anna the prophetess, the Magi, the Star, Herod, the angels; Helvidius, I say, would have us believe that Joseph, though well acquainted with such surprising wonders, dared to touch the temple of God, the abode of the Holy Ghost, the mother of his Lord? Mary at all events "kept all these sayings in her heart." You cannot for shame say Joseph did not know of them, for Luke tells us, [Luke 2:33] "His father and mother were marvelling at the things which were spoken concerning Him." And yet you with marvellous effrontery contend that the reading of the Greek manuscripts is corrupt, although it is that which nearly all the Greek writers have left us in their books, and not only so, but several of the Latin writers have taken the words the same way. Nor need we now consider the variations in the copies, since the whole record both of the Old and New Testament has since that time been translated into Latin, and we must believe that the water of the fountain flows purer than that of the stream.

Helvidius will answer, "What you say, is in my opinion mere trifling. Your arguments are so much waste of time, and the discussion shows more subtlety than truth. Why could not Scripture say, as it said of Thamar and Judah, [Genesis 38:26] 'And he took his wife, and knew her again no more'? Could not Matthew find words to express his meaning? 'He knew her not,' he says, 'until she brought forth a son.' He did then, after her delivery, know her, whom he had refrained from knowing until she was delivered."

If you are so contentious, your own thoughts shall now prove your master. You must not allow any time to intervene between delivery and intercourse. You must not say, "If a woman conceive seed and bear a man child, then she shall be unclean seven days; as in the days of the separation of her sickness shall she be unclean. And in the eighth day the flesh of his foreskin shall be circumcised. And she shall continue in the blood of her purifying three and thirty days. She shall touch no hallowed thing," and so forth. On your showing, Joseph must at once approach, her, and be subject to Jeremiah's [Jeremiah 5:8] reproof, "They were as mad horses in respect of women: every one neighed after his neighbour's wife." Otherwise, how can the words stand good, "he knew her not, till she had brought forth a son," if he waits after the time of another purifying has expired, if his lust must brook another long delay of forty days? The mother must go unpurged from her child-bed taint, and the wailing infant be attended to by the midwives, while the husband clasps his exhausted wife. Thus forsooth must their married life begin so that the Evangelist may not be convicted of falsehood. But God forbid that we should think thus of the Saviour's mother and of a just man. No midwife assisted at His birth; no women's officiousness intervened. With her own hands she wrapped Him in the swaddling clothes, herself both mother and midwife, [Luke 2:7] "and laid Him," we are told, "in a manger, because there was no room for them in the inn"; a statement which, on the one hand, refutes the ravings of the apocryphal accounts, for Mary herself wrapped Him in the swaddling clothes, and on the other makes the voluptuous notion of Helvidius impossible, since there was no place suitable for married intercourse in the inn.
Augustine of HippoAD 430
Sermons 186
It was not the visible sun, but its invisible Creator who consecrated this day for us, when the Virgin Mother, fertile of womb and integral in her virginity, brought him forth, made visible for us, by whom, when he was invisible, she too was created. A Virgin conceiving, a Virgin bearing, a Virgin pregnant, a Virgin bringing forth, a Virgin perpetual. Why do you wonder at this, O man?
Augustine of HippoAD 430
Heresies, LVI
Those heretics were called Antidicomarites who denied the virginity of Mary to the point that they claim that after the birth of Christ she had intercourse with her husband.
Peter ChrysologusAD 450
SERMON 117: The First Adam, and the Last Adam, Born of a Virgin
Where are they who think that the Virgin's conception and giving birth to her child are to be likened to those of other women... The Virgin conceives, the Virgin brings forth her child, and she remains a virgin.
Leo the GreatAD 461
Sermon 22:2
And by a new nativity He was begotten, conceived by a Virgin, born of a Virgin, without paternal desire, without injury to the mother's chastity... for a Virgin conceived, a Virgin bare, and a Virgin she remained.
Pseudo-Chrysostom (as quoted by Aquinas, AD 1274)AD 500
Catena Aurea by Aquinas
Took unto him, not took home to him; for he had not sent her away; he had put her away in thought only, and now took her again in thought.

As one might say, 'He told it not so long as he lived;' would this imply that he told it after his death? Impossible. So it were credible that Joseph might have known her before the birth, while he was yet ignorant of the great mystery; but after that he understood how she had been made a temple of the Only-begotten of God, how could he occupy that? The followers of Eunomius think, as they have dared to assert this, that Joseph also dared to do it, just as the insane think all men equally mad with themselves.

It may be said, that know here signifies simply, to understand; that whereas before he had not understood how great her dignity, after the birth he then knew that she had been made more honourable and worthy than the whole world, who had carried in her womb Him whom the whole world could not contain.
Remigius of Rheims (as quoted by Aquinas, AD 1274)AD 533
Catena Aurea by Aquinas
Life returned by the same entrance through which death had entered in. By Adam's disobedience we were ruined, by Joseph's obedience we all begin to be recalled to our former condition; for in these words is commended to us the great virtue of obedience, when it is said, And Joseph rising from sleep, did as the Angel of the Lord had commanded him.

Or, Took her so far, as that the nuptial rites being complete, she was called his wife; but not so far as to lie with her, as it follows, And knew her not.

It is clear that this Name was well known to the Holy Fathers and the Prophets of God, but to him above all, who spake, My soul fainted for Thy salvation; (Ps. 119:81.) and, My soul hath rejoiced in Thy salvation. Also to him who spake, I will joy in God my Saviour. (Ps. 13:5. Hab. 3:18.)
Second Council of ConstantinopleAD 553
Second Council of Constantinople, The Capitula of the Council, #2
If anyone shall not confess that the Word of God has two nativities, the one from all eternity of the Father, without time and without body; the other in these last days, coming down from heaven and being made flesh of the holy and glorious Mary, Mother of God and always a virgin, and born of her: let him be anathema.
Lateran Council of 649AD 649
Canon 3
If anyone does not in accord with the Holy Fathers acknowledge the holy and ever virgin and immaculate Mary was really and truly the Mother of God, inasmuch as she, in the fullness of time, and without seed, conceived by the Holy Spirit, God in the Word Himself, who before all time was born of God the Father, and without loss of integrity brought Him forth, and after His birth preserved her virginity inviolate, let him be condemned.
John DamasceneAD 749
An Exposition of the Orthodox Faith (Book IV), Chapter 14
But just as He who was conceived kept her who conceived still virgin, in like manner also He who was born preserved her virginity intact, only passing through her and keeping her closed. [Ezekiel 44:2] The conception, indeed, was through the sense of hearing, but the birth through the usual path by which children come, although some tell tales of His birth through the side of the Mother of God. For it was not impossible for Him to have come by this gate, without injuring her seal in anyway.

The ever-virgin One thus remains even after the birth still virgin, having never at any time up till death consorted with a man. For although it is written, And knew her not till she had brought forth her first-born Son [Matthew 1:25], yet note that he who is first-begotten is first-born even if he is only-begotten. For the word "first-born" means that he was born first but does not at all suggest the birth of others. And the word "till" signifies the limit of the appointed time but does not exclude the time thereafter. For the Lord says, And lo, I am with you always, even unto the end of the world , not meaning thereby that He will be separated from us after the completion of the age. The divine apostle, indeed, says, And so shall we ever be with the Lord [1 Thessalonians 4:17], meaning after the general resurrection.

For could it be possible that she, who had borne God and from experience of the subsequent events had come to know the miracle, should receive the embrace of a man. God forbid!
Theophylact of OhridAD 1107
Explanation of the Holy Gospel (Matthew)
That is, he never came together with her at all. "Until" here does not mean that before the birth he did not know her and afterwards he did, but that he absolutely never knew her. Scripture employs this expression. For example, the raven "returned not unto the ark until the water had dried off from the earth" (Gen 8:7). But neither did it return after the water had dried off. Again, "I am with you until the end of the world" (Gen 28:20). So after the end He will no longer be with the saints? But how can that be? For at that time more than ever will He be with them. So must you understand here "until she brought forth’’ to mean, neither before the birth nor after the birth did he know her. How could he have touched the Holy Virgin having once understood the ineffable birth giving?

The evangelist does not call Him "her firstborn son" in the sense that she later gave birth to a second son, but simply that He was the first and only child that she bore. For Christ is both the "firstborn" by having been born first, and the "only begotten," in that He had no brother.

And here, too, he shows Joseph’s ready obedience to do everything that the angel had told him to do.
Glossa Ordinaria (as quoted by Aquinas, AD 1274)AD 1274
Catena Aurea by Aquinas
(ap. Anselm.) This error then is barred by the Evangelist saying, That it might be fulfilled which was spoken of the Lord by the Prophet. Now one kind of prophecy is by the preordination of God, and must needs be fulfilled, and that without any free choice on our part. Such is that of which we now speak; wherefore he says, Lo, to show the certainty of prophecy. There is another kind of prophecy which is by the foreknowledge of God, and with this our free will is mixed up; wherein by grace working with us we obtain reward, or if justly deserted by it, torment. Another is not of foreknowledge, but is a kind of threat made after the manner of men; as that, Yet forty days, and Nineveh shall be overthrown: (Jonah 3.) understanding, unless the Ninevites amend themselves.

(ord. et ap. Anselm ex Beda cit.) He not only did what the Angel commanded, but as he commanded it. Let each one who is warned of God, in like manner, break off all delays, rise from sleep, and do that which is commanded him.

Otherwise; On account of the glorification of the most holy Mary, she could not be known by Joseph until the birth; for she who had the Lord of glory in her womb, how should she be known? If the face of Moses talking with God was made glorious, so that the children of Israel could not look thereon, how much more could not Mary be known, or even looked upon, who bare the Lord of glory in her womb? After the birth she was known of Joseph to the beholding of her face, but not to be approached carnally.

(Ord.) Or; He is first-born among the elect by grace; but by nature the Only-begotten of God the Father, the only Son of Mary. And called His name Jesus, on the eighth day on which the circumcision took place, and the Name was given.
Thomas AquinasAD 1274
Summa Theologiae, Third Part, Question 28, Article 3
Some have said that this is not to be understood of carnal knowledge, but of acquaintance. Thus Chrysostom says [Opus Imperf. in Matth., Hom. 1: among the spurious works ascribed to Chrysostom] that "Joseph did not know her, until she gave birth, being unaware of her dignity: but after she had given birth, then did he know her. Because by reason of her child she surpassed the whole world in beauty and dignity: since she alone in the narrow abode of her womb received Him Whom the world cannot contain."

Others again refer this to knowledge by sight. For as, while Moses was speaking with God, his face was so bright "that the children of Israel could not steadfastly behold it"; so Mary, while being "overshadowed" by the brightness of the "power of the Most High," could not be gazed on by Joseph, until she gave birth. But afterwards she is acknowledged by Joseph, by looking on her face, not by lustful contact.

Jerome, however, grants that this is to be understood of knowledge by intercourse; but he observes that "before" or "until" has a twofold sense in Scripture. For sometimes it indicates a fixed time, as Galatians 3:19: The law "was set because of transgressions, until the seed should come, to whom He made the promise." On the other hand, it sometimes indicates an indefinite time, as in Psalm 122:2: "Our eyes are unto the Lord our God, until He have mercy on us"; from which it is not to be gathered that our eyes are turned from God as soon as His mercy has been obtained. In this sense those things are indicated "of which we might doubt if they had not been written down: while others are left out to be supplied by our understanding. Thus the evangelist says that the Mother of God was not known by her husband until she gave birth, that we may be given to understand that still less did he know her afterwards" (Adversus Helvid. v).
Ulrich ZwingliAD 1531
Sermon: Mary, ever virgin, mother of God
I have never thought, still less taught, or declared publicly, anything concerning the subject of the ever Virgin Mary, Mother of our salvation, which could be considered dishonorable, impious, unworthy or evil... I believe with all my heart according to the word of holy gospel that this pure virgin bore for us the Son of God and that she remained, in the birth and after it, a pure and unsullied virgin, for eternity.
Martin LutherAD 1546
That Jesus Christ Was Born a Jew
Now this refutes also the false interpretation which some have drawn from the words of Matthew, where he says, "Before they came together she was found to be with child." They interpret this as though the evangelist meant to say, "Later she came together with Joseph like any other wife and lay with him, but before this occurred she was with child apart from Joseph," etc. Again, when he says, "And Joseph knew her not until she brought forth her first-born son" [Matt. 1:25], they interpret it as though the evangelist meant to say that he knew her, but not before she had brought forth her first-born son. This was the view of Helvidius which was refuted by Jerome.

Such carnal interpretations miss the meaning and purpose of the evangelist. As we have said, the evangelist, like the prophet Isaiah, wishes to set before our eyes this mighty wonder, and point out what an unheard-of thing it is for a maiden to be with child before her husband brings her home and lies with her; and further, that he does not know her carnally until she first has a son, which she should have had after first having been known by him. Thus, the words of the evangelist do not refer to anything that occurred after the birth, but only to what took place before it. For the prophet and the evangelist, and St. Paul as well, do not treat of this virgin beyond the point where they have from her that fruit for whose sake she is a virgin and everything else. After the child is born they dismiss the mother and speak not about her, what became of her, but only about her offspring. Therefore, one cannot from these words [Matt. 1:18, 25] conclude that Mary, after the birth of Christ, became a wife in the usual sense; it is therefore neither to be asserted nor believed. All the words are merely indicative of the marvelous fact that she was with child and gave birth before she had lain with a man.

The form of expression used by Matthew is the common idiom, as if I were to say, "Pharaoh believed not Moses, until he was drowned in the Red Sea." Here it does not follow that Pharaoh believed later, after he had drowned; on the contrary, it means that he never did believe. Similarly when Matthew [1:25] says that Joseph did not know Mary carnally until she had brought forth her son, it does not follow that he knew her subsequently; on the contrary, it means that he never did know her. Again, the Red Sea overwhelmed Pharaoh before he got across. Here too it does not follow that Pharaoh got across later, after the Red Sea had overwhelmed him, but rather that he did not get across at all. In like manner, when Matthew [1:18] says, "She was found to be with child before they came together," it does not follow that Mary subsequently lay with Joseph, but rather that she did not lie with him.

Elsewhere in Scripture the same manner of speech is employed. Psalm 110 [:1] reads, "God says to my Lord: 'Sit at my right hand, till I make your enemies your footstool.'" Here it does not follow that Christ does not continue to sit there after his enemies are placed beneath his feet. Again, in Genesis 28 [:15], "I will not leave you until I have done all that of which I have spoken to you." Here God did not leave him after the fulfillment had taken place. Again, in Isaiah 42 [:4], "He shall not be sad, nor troublesome, till he has established justice in the earth." There are many more similar expression, so that this babble of Helvidius is without justification; in addition, he has neither noticed nor paid any attention to either Scripture or the common idiom.
John CalvinAD 1564
Sermon on Matthew 1:22-25, English translation of a passage taken from a book published by Denys Ragueneau, entitled: Soixante cinq sermons de Iean Calvin sur l'harmonie ou concordance des trois eua[n]gelistes, S. Matthieu, sainct Marc, & S. Luc. : Recueillis fideleme[n]t a Geneve : Imprimé par Conrad Badius, 1562.
There have been certain folk who have wished to suggest that from this passage (Matt 1:25) that the Virgin Mary had other children than the Son of God, and that Joseph then dwelt with her later; but what folly this is! For the gospel writer did not wish to record what happened afterwards; he simply wished to make clear Joseph's obedience and to show also that Joseph had been well and truly assured that it was God who had sent His angel to Mary. He had therefore never dwelt with her nor had he shared her company... And besides this Our Lord Jesus Christ is called the first-born. This is not because there was a second or a third, but because the gospel writer is paying regard to the precedence. Scripture speaks thus of naming the first-born whether or not there was any question of the second. Thus we see the intention of the Holy Spirit. This is why to lend ourselves to foolish subtleties would be to abuse Holy Scripture.
John CalvinAD 1564
Works, Volume 31, Harmony of the Evangelists #25, page 107
And knew her not. This passage afforded the pretext for great disturbances, which were introduced into the Church, at a former period, by Helvidius. The inference he drew from it was, that Mary remained a virgin no longer than till her first birth, and that afterwards she had other children by her husband. Jerome, on the other hand, earnestly and copiously defended Mary's perpetual virginity. Let us rest satisfied with this, that no just and well-grounded inference can be drawn from these words of the Evangelist, as to what took place after the birth of Christ. He is called first-born; but it is for the sole purpose of informing us that he was born of a virgin. It is said that Joseph knew her not till she had brought forth her first-born son: but this is limited to that very time. What took place afterwards, the historian does not inform us. Such is well known to have been the practice of inspired writers. Certainly, no man will ever raise a question on this subject, except from curiosity; and no man will obstinately keep up the argument, except from an extreme fondness for disputation.
John WesleyAD 1791
Letter to a Roman Catholic, DUBLIN July 18, 1749
I believe that He [Jesus] was made man, joining the human nature with the divine in one person; being conceived by the singular operation of the Holy Ghost, and born of the blessed Virgin Mary, who, as well after as before she brought Him forth, continued a pure and unspotted virgin.
JB LightfootAD 1889
THE BRETHREN OF THE LORD
Certain expressions in the evangelical narratives are said to imply that Mary bore other children besides the Lord, and it is even asserted that no unprejudiced person could interpret them otherwise. The justice of this charge may be fairly questioned. The context in each case seems to suggest another explanation of these expressions, which does not decide anything one way or the other. St. Matthew writes that Joseph ‘knew not’ his wife ‘till (ewV ou) she brought forth a son’ (1:25); while St. Luke speaks of her bringing forth ‘her firstborn son’ (2:7). St. Matthew’s expression however, ‘till she brought forth,’ as appears from the context, is intended simply to show that Jesus was not begotten in the course of nature; and thus, while it denies any previous intercourse with her husband, it neither asserts nor implies any subsequent intercourse. Again, the prominent idea conveyed by the term ‘firstborn’ to a Jew would be not the birth of other children, but the special consecration of this one. The typical reference in fact is foremost in the mind of St. Luke, as he himself explains it, ‘Every male that openeth the womb shall be called holy to the Lord’ (2:23). Thus ‘firstborn’ does not necessarily suggest ‘later-born,’ any more than ‘son’ suggests ‘daughter.’ The two words together describe the condition under which in obedience to the law a child was consecrated to God. The ‘firstborn son’ is in fact the Evangelist’s equivalent for the ‘male that openeth the womb.’
CS LewisAD 1963
Miracles, from God in the Dock
There is an activity of God displayed throughout creation, a wholesale activity let us say which men refuse to recognize. The miracles done by God incarnate, living as a man in Palestine, perform the very same things as this wholesale activity, but at a different speed and on a smaller scale. One of their chief purposes is that men, having seen a thing done by personal power on the small scale, may recognize, when they see the same thing done on the large scale, that the power behind it is also personal – is indeed the very same person who lived among us two thousand years ago. The miracles in fact are a retelling in small letters of the very same story which is written across the whole world in letters too large for some of us to see...

I can understand the man who denies the miraculous altogether; but what is one to make of the people who admit some miracles but deny the Virgin Birth? Is it that for all their lip service to the laws of Nature there is only one law of Nature that they really believe? Or is it that they see in this miracle a slur upon sexual intercourse which is rapidly becoming the one thing venerated in a world without veneration? No miracle is in fact more significant. What happens in ordinary generation? What is a father’s function in the act of begetting? A microscopic particle of matter from his body fertilizes the female: and with that microscopic particle passes, it may be, the color of his hair and his great grandfather’s hanging lip, and the human form in all its complexity of bones, liver, sinews, heart, and limbs, and pre-human form which the embryo will recapitulate in the womb. Behind every spermatozoon lies the whole history of the universe: locked within it is no small part of the world’s future. That is God’s normal way of making a man – a process that takes centuries, beginning with the creation of matter itself, and narrowing to one second and one particle at the moment of begetting. And once again men will mistake the sense impressions which this creative act throws off for the act itself or else refer it to some infinite being such as Genius. Once, therefore, God does it directly, instantaneously; without a spermatozoon, without the millenniums of organic history behind the spermatozoon. There was of course another reason. This time He was creating not simply a man, but the man who was to be Himself: the only true Man. The process which leads to the spermatozoon has carried down with it through the centuries much undesirable silt; the life which reaches us by that normal route is tainted. To avoid that taint, to give humanity a fresh start, he once short-circuited the process. There is a vulgar anti-God paper which some anonymous donor sends me every week. In it recently I saw the taunt that we Christians believe in a God who committed adultery with the wife of a Jewish carpenter. The answer to that is that if you describe the action of God in fertilizing Mary as “adultery” then, in that sense, God would have committed adultery with every woman who ever had a baby. For what He did once without a human father, He does always even when He uses a human father as His instrument. For the human father in ordinary generation is only a carrier, sometimes an unwilling carrier, always the last in a long line of carriers, of life that comes from the supreme life. Thus the filth that our poor, muddled, sincere, resentful enemies fling at the Holy One, either does not stick, or, sticking, turns into glory.
Source: Quotations drawn from early Church Fathers and historical Christian theologians (AD 100–1500). Some quotes address the surrounding passage context rather than this verse alone.
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