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Public-domain commentary
Matthew Henry
From his Commentary on the Whole Bible. Henry comments on passages, not single verses — this entry covers Genesis 18:9–15. His three-level outline is real structure in the source text, so it is rendered as structure.
These heavenly guests (being sent to confirm the promise lately made to Abraham, that he should have a son by Sarah), while they are receiving Abraham's kind entertainment, they return his kindness. He receives angels, and has angels' rewards, a gracious message from heaven, Mat 10:41.
I.Care is taken that Sarah should be within hearing.
She must conceive by faith, and therefore the promise must be made to her, Heb 11:11. It was the modest usage of that time that the women did not sit at meat with men, at least not with strangers, but confined themselves to their own apartments; therefore Sarah is here out of sight: but she must not be out of hearing. The angels enquire (Gen 18:9), Where is Sarah thy wife? By naming her, they gave intimation enough to Abraham that, though they seemed strangers, yet they very well knew him and his family. By enquiring after her, they showed a friendly kind concern for the family and relations of one whom they found respectful to them. It is a piece of common civility, which ought to proceed from a principle of Christian love, and then it is sanctified. And, by speaking of her (she over-hearing it), they drew her to listen to what was further to be said. Where is Sarah thy wife? say the angels. "Behold in the tent," says Abraham. "Where should she be else? There she is in her place, as she uses to be, and is now within call." Note,
1.The daughters of Sarah must learn of her to be chaste, keepers at home, Tit 2:5. There is nothing got by gadding.
2.Those are most likely to receive comfort from God and his promises that are in their place and in the way of their duty, Luk 2:8.
II.The promise is then renewed and ratified, that she should have a son (Gen 18:10):
"I will certainly return unto thee, and visit thee next time with the performance, as now I do with the promise." God will return to those that bid him welcome, that entertain his visits: "I will return thy kindness, Sarah thy wife shall have a son;" it is repeated again, Gen 18:14. Thus the promises of the Messiah were often repeated in the Old Testament, for the strengthening of the faith of God's people. We are slow of heart to believe, and therefore have need of line upon line to the same purport. This is that word of promise which the apostle quotes (Rom 9:9) as that by the virtue of which Isaac was born. Note,
1.The same blessings which others have from common providence believers have from the promise, which makes them very sweet and very sure.
2.The spiritual seed of Abraham owe their life, and joy, and hope, and all, to the promise. They are born by the word of God, Pe1 1:23.
III.Sarah thinks this too good news to be true, and therefore cannot as yet find in her heart to believe it:
Sarah laughed within herself, Gen 18:12. It was not a pleasing laughter of faith, like Abraham's (Gen 17:17), but it was a laughter of doubting and mistrust. Note, The same thing may be done from very different principles, of which God only, who knows the heart, can judge. The great objection which Sarah could not get over was her age: "I am waxed old, and past childbearing in the course of nature, especially having been hitherto barren, and (which magnifies the difficulty) my lord is old also." Observe here,
1.Sarah calls Abraham her lord; it was the only good word in this saying, and the Holy Ghost takes notice of it to her honour, and recommends it to the imitation of all Christian wives. Pe1 3:6, Sarah obeyed Abraham, calling him lord, in token of respect and subjection. Thus must the wife reverence her husband, Eph 5:33. And thus must we be apt to take notice of what is spoken decently and well, to the honour of those that speak it, though it may be mixed with that which is amiss, over which we should cast a mantle of love.
2.Human improbability often sets up in contradiction to the divine promise. The objections of sense are very apt to stumble and puzzle the weak faith even of true believers. It is hard to cleave to the first Cause, when second causes frown.
3.Even where there is true faith, yet there are often sore conflicts with unbelief, Sarah could say, Lord, I believe (Heb 11:11), and yet must say, Lord, help my unbelief.
IV.The angel reproves the indecent expressions of her distrust, Gen 18:13, Gen 18:14. Observe,
1.Though Sarah was now most kindly and generously entertaining these angels, yet, when she did amiss, they reproved her for it, as Christ reproved Martha in her own house, Luk 10:40, Luk 10:41. If our friends be kind to us, we must not therefore be so unkind to them as to suffer sin upon them.
2.God gave this reproof to Sarah by Abraham her husband. To him he said, Why did Sarah laugh? perhaps because he had not told her of the promise which had been given him some time before to this purport, and which, if he had communicated it to her with its ratifications, would have prevented her from being so surprised now. Or Abraham was told of it that he might tell her of it. Mutual reproof, when there is occasion for it, is one of the duties of the conjugal relation.
3.The reproof itself is plain, and backed with a good reason: Wherefore did Sarah laugh? Note, It is good to enquire into the reason of our laughter, that it may not be the laughter of the fool, Ecc 7:6. "Wherefore did I laugh?" Again, Our unbelief and distrust are a great offence to the God of heaven. He justly takes it ill to have the objections of sense set up in contradiction to his promise, as Luk 1:18.
4.Here is a question asked which is enough to answer all the cavils of flesh and blood: Is any thing too hard for the Lord? (Heb. too wonderful), that is,
(1.)Is any thing so secret as to escape his cognizance? No, not Sarah's laughing, though it was only within herself. Or,
(2.)Is any thing so difficult as to exceed his power? No, not the giving of a child to Sarah in her old age.
V.Sarah foolishly endeavours to conceal her fault (Gen 18:15):
She denied, saying, I did not laugh, thinking nobody could contradict her: she told this lie, because she was afraid; but it was in vain to attempt concealing it from an all-seeing eye; she was told, to her shame, Thou didst laugh. Now,
1.There seems to be in Sarah a retraction of her distrust. Now she perceived, by laying circumstances together, that it was a divine promise which had been made concerning her, she renounced all doubting distrustful thoughts about it. But,
2.There was withal a sinful attempt to cover a sin with a lie. It is a shame to do amiss, but a greater shame to deny it; for thereby we add iniquity to our iniquity. Fear of a rebuke often betrays us into this snare. See Isa 57:11, Whom hast thou feared, that thou hast lied? But we deceive ourselves if we think to impose upon God; he can and will bring truth to light, to our shame. He that covers his sin cannot prosper, for the day is coming which will discover it.
Historical interpretation
Historical Reception
One surviving comment on this verse from the historical church.
I say the truth in Christ, I lie not, my conscience also bearing me witness in the Holy Ghost, That I have great heaviness and continual sorrow in my heart. For I could wish that myself were accursed from Christ for my brethren, my kinsmen according to the flesh: Who are Israelites; to whom pertaineth the adoption, and the glory, and the covenants, and the giving of the law, and the service of God, and the promises; Whose are the fathers, and of whom as concerning the flesh Christ came, who is over all, God blessed for ever. Amen. Not as though the word of God hath taken none effect. For they are not all Israel, which are of Israel: Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called. That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed. For this is the word of promise, At this time will I come, and Sara shall have a son. [Genesis 18:10-14] And not only this; but when Rebecca also had conceived by one, even by our father Isaac; (For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth;) It was said unto her, The elder shall serve the younger. As it is written, Jacob have I loved, but Esau have I hated. What shall we say then? Is there unrighteousness with God? God forbid. For he saith to Moses, I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion. So then it is not of him that willeth, nor of him that runneth, but of God that showeth mercy. For the scripture saith unto Pharaoh, Even for this same purpose have I raised thee up, that I might show my power in thee, and that my name might be declared throughout all the earth. Therefore hath he mercy on whom he will have mercy, and whom he will he hardeneth.
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Summary
Genesis 18:13 profoundly captures the LORD's direct, omniscient confrontation of Sarah's private skepticism regarding the miraculous promise of a son. This pivotal interaction unveils God's intimate knowledge of human hearts and thoughts, simultaneously reaffirming the absolute certainty of His divine promises, even when they defy human logic and perceived impossibilities.
Context
Literary Context
This verse is situated within a highly significant narrative in Genesis 18, immediately following the extraordinary announcement by one of three mysterious divine visitors that Abraham and Sarah, despite their advanced age, would miraculously conceive a son within a year. Sarah, hidden within the tent, overhears this incredible prophecy and laughs inwardly, finding the prospect biologically impossible given her own and Abraham's advanced years—Abraham being a hundred years old and Sarah ninety. The LORD, one of the visitors, then directly addresses Abraham, demonstrating His absolute knowledge of Sarah's private thought and gently challenging her doubt, setting the stage for the powerful rhetorical question in Genesis 18:14.
Historical & Cultural Context
In the ancient Near East, hospitality was a sacred duty, and the narrative begins with Abraham eagerly extending lavish hospitality to these unknown visitors. The promise of a child, particularly a male heir, was paramount for family lineage, social standing, and the continuation of the covenant. Barrenness was often seen as a curse or a sign of divine displeasure, making Sarah's long-standing inability to conceive a source of deep personal anguish and societal shame. The concept of bearing a child in old age was considered a biological impossibility, underscoring the miraculous nature of God's intervention. Furthermore, the patriarchal structure meant that God's address to Abraham, as the head of the household, was culturally appropriate, even though the question directly concerned Sarah's private thoughts.
Key Themes
Genesis 18:13 contributes significantly to several overarching themes within the book of Genesis and the broader biblical narrative. Foremost among these is God's Omniscience, powerfully demonstrated by His knowledge of Sarah's hidden thoughts, transcending physical barriers and human secrecy. It also highlights the theme of Divine Promise and Faithfulness, as God's word stands firm despite human skepticism and the apparent impossibility of the situation. The narrative also explores the tension between Human Doubt and Divine Power, as Sarah's laughter embodies the natural human struggle to reconcile God's boundless power with perceived natural limitations. This verse also introduces the significant Laughter Motif, which will culminate in the naming of their miraculously born son, Isaac, whose name literally means "he laughs" or "laughter," transforming Sarah's laughter of disbelief into laughter of joy.
Exposition and Analysis
Key Word Analysis
This is the covenant name of God, H3068, emphasizing His self-existent, eternal nature. The use of "LORD" here signifies that the divine visitor speaking to Abraham is none other than the God of the covenant, the one who is utterly faithful to His promises and possesses all power to fulfill them. His identity as Yᵉhôvâh underscores the absolute authority and certainty behind His inquiry and the subsequent reaffirmation of His promise.
Derived from H6711, this verb means "to laugh outright (in merriment or scorn)" or by implication, "to sport." In this context, Sarah's laughter is clearly one of disbelief, bordering on scorn or cynical amusement, at the seemingly absurd proposition of bearing a child in her old age. This word is profoundly significant as it directly foreshadows the name of the promised son, Isaac (Yitzchak), which means "he laughs" or "laughter," illustrating how God transforms human skepticism into divine joy and fulfillment.
Meaning "to be old" or "aged." This word highlights the central human obstacle to the divine promise. Sarah's self-identification as "old" underscores the biological reality that made conception naturally impossible for her. Her age represents the human limitation against which God's omnipotence is about to be powerfully contrasted, emphasizing that God's power transcends all natural boundaries.
Verse Breakdown
"And the LORD said unto Abraham,"
This opening clause establishes the divine initiative and the direct nature of God's engagement. It signifies that God is not merely observing but actively participating in the human drama, initiating a conversation that reveals His omniscience. The address to Abraham, rather than directly to Sarah, respects the patriarchal customs of the time while still ensuring Sarah, overhearing, receives the message.
"Wherefore did Sarah laugh,"
This is the core of the divine inquiry. God's question is not born of ignorance but of perfect knowledge. It is a rhetorical question designed to expose Sarah's hidden thought and bring it into the light, demonstrating that no human thought or emotion is concealed from Him. Her laughter was not one of joy or amusement, but of disbelief and perhaps a touch of cynical amusement at the absurdity of the promise from a human perspective.
"saying, Shall I of a surety bear a child, which am old?"
This phrase articulates the very reasoning behind Sarah's laughter, revealing her internal monologue (H559, ʼâmar, "saying"). The phrase "of a surety" (H552, ʼumnâm, "in (very) deed") emphasizes the certainty of the promise being questioned. Her rhetorical question, "Shall I... bear a child, which am old?" (H3205, yâlad, "bear young"; H2204, zâqên, "old"), expresses deep-seated skepticism rooted in the biological realities of her advanced age. This human perspective stands in stark contrast to the divine power that is about to be asserted in the subsequent verse, Genesis 18:14, "Is any thing too hard for the LORD?"
Literary Devices
Genesis 18:13 employs several potent literary devices. The most prominent is Omniscience, as God's question directly reveals His knowledge of Sarah's private, unspoken thoughts and actions (her inward laughter). This serves to underscore His divine nature and authority. There is also profound Irony in Sarah's laughter of disbelief, which will ultimately be transformed into the name of her son, Isaac, meaning "he laughs." This creates a powerful Foreshadowing of the joy that will replace her skepticism. The question itself, "Wherefore did Sarah laugh...?", functions as a Rhetorical Question, not seeking information but rather prompting reflection and challenging Sarah's (and Abraham's) lack of faith in God's omnipotence.
Theological and Thematic Connections
Genesis 18:13 is a foundational passage for understanding God's character and His interaction with humanity. It powerfully demonstrates God's infinite knowledge, extending even to the most private thoughts and hidden emotions of the human heart, regardless of physical distance or secrecy. This divine omniscience is not merely an attribute but an active force, used here to gently, yet firmly, confront human doubt. Despite Sarah's skepticism and the apparent biological impossibility of the situation, God's promise remains steadfast and certain, highlighting His unwavering faithfulness. Sarah's laughter embodies the common human struggle to reconcile God's boundless power with perceived human limitations and natural laws. God's gracious, yet direct, engagement serves to challenge this unbelief and invite a deeper trust, demonstrating that His plans are not constrained by human understanding or capability.
Reflection and Application
Genesis 18:13 offers profound lessons for believers today, encouraging us to trust in God's ability to accomplish the humanly impossible. Just as Sarah struggled to reconcile God's promise with her natural limitations, we often face situations where divine plans seem contrary to our understanding, our circumstances, or even the laws of nature. This passage reminds us that God knows our innermost thoughts, doubts, and struggles, and He graciously engages with them, inviting us to move beyond our limited perspectives and embrace the truth of His word. We are called to exercise faith over sight, knowing that He who promised is faithful and that His declarations will always be performed, regardless of our perceived impossibilities. Our doubts, though known to God, are met not with condemnation but with an invitation to deeper faith and a powerful reminder of His limitless power.
Questions for Reflection
FAQ
Why did God ask Abraham about Sarah's laughter instead of Sarah directly?
While God certainly could have addressed Sarah directly, His decision to speak to Abraham, the head of the household, aligns with the cultural and patriarchal norms of the time. This approach allowed Sarah to overhear the divine word through her husband, potentially softening the direct confrontation and preserving her dignity, while still ensuring the message of God's omniscience and the certainty of His promise was clearly conveyed to both of them. It also highlights the unity of the covenant relationship with Abraham and his household.
Was Sarah's laughter a sin of unbelief?
Sarah's laughter stemmed from human doubt and the natural difficulty of believing something so contrary to her life experience and biological reality. While it indicated a momentary lack of immediate faith in that specific promise, God's response was not one of harsh condemnation but of gentle correction and reassurance, immediately followed by the powerful rhetorical question, "Is anything too hard for the LORD?" This interaction ultimately led to a strengthening of her faith, as evidenced by later biblical testimony where Sarah is commended for her faith. It highlights that God understands human weakness and graciously works with it, drawing people towards greater trust.
Christ-Centered Fulfillment
The miraculous birth of Isaac, conceived beyond natural human capacity through divine intervention, serves as a powerful foreshadowing of the ultimate miraculous birth of Jesus Christ. Just as Sarah, "old" and beyond childbearing years, conceived through God's power, so too was Jesus conceived by the Holy Spirit in the virgin Mary, transcending all natural limitations (Luke 1:34-35). Sarah's laughter of doubt was transformed into the laughter of joy at Isaac's birth, signifying the fulfillment of God's covenant promise. Similarly, the coming of Christ turns humanity's despair and doubt—our spiritual barrenness—into the profound and eternal joy of salvation and new life. Christ, as the ultimate fulfillment of God's "impossible" promises, demonstrates that "with God nothing shall be impossible" (Luke 1:37), overcoming not only biological impossibilities but also the ultimate impossibility of human sin and death through His resurrection, thereby bringing forth a new creation and a spiritual lineage far exceeding Abraham's physical descendants (Romans 4:16-17).