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Translation
King James Version
If a man vow a vow unto the LORD, or swear an oath to bind his soul with a bond; he shall not break his word, he shall do according to all that proceedeth out of his mouth.
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KJV (with Strong's)
If a man H376 vow H5087 a vow H5088 unto the LORD H3068, or swear H7650 an oath H7621 to bind H631 his soul H5315 with a bond H632; he shall not break H2490 his word H1697, he shall do H6213 according to all that proceedeth H3318 out of his mouth H6310.
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Complete Jewish Bible
when a man makes a vow to ADONAI or formally obligates himself by swearing an oath, he is not to break his word but is to do everything he said he would do.
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Berean Standard Bible
If a man makes a vow to the LORD or swears an oath to obligate himself by a pledge, he must not break his word; he must do everything he has promised.
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American Standard Version
When a man voweth a vow unto Jehovah, or sweareth an oath to bind his soul with a bond, he shall not break his word; he shall do according to all that proceedeth out of his mouth.
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World English Bible Messianic
When a man vows a vow to the LORD, or swears an oath to bind his soul with a bond, he shall not break his word. He shall do according to all that proceeds out of his mouth.
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Geneva Bible (1599)
Moses also spake vnto the heads of ye tribes concerning the children of Israel, saying, This is the thing which the Lord hath commanded,
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Young's Literal Translation
`When a man voweth a vow to Jehovah, or hath sworn an oath to bind a bond on his soul, he doth not pollute his word; according to all that is going out from his mouth he doth.
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Study This Verse

SUMMARY

Numbers 30:2 establishes a fundamental principle within the Mosaic Law concerning the profound sanctity and binding nature of personal vows and oaths made to the Lord. This verse unequivocally declares that any solemn verbal commitment or pledge uttered by a man, particularly when it involves a self-imposed obligation or invokes the divine name, creates an inescapable spiritual and moral responsibility. It emphasizes that such a word must not be violated or profaned but must be meticulously and completely fulfilled, highlighting the deep accountability and unwavering integrity required of those who enter into sacred agreements before God.

CONTEXT

  • Literary Context: Numbers 30 immediately follows a detailed exposition of the sacrificial system and the prescribed offerings for various festivals throughout the year, as outlined in Numbers 28-29. This transition from communal, ritualistic worship to individual, personal commitments is highly significant. It demonstrates that while corporate worship and prescribed rituals are vital to Israel's covenant relationship with God, individual integrity and faithfulness in one's personal dealings with the divine are equally paramount. The placement of these laws on vows and oaths underscores that one's private spiritual life and spoken word are as much a part of covenant faithfulness as public observances. The subsequent chapters, such as Numbers 31, deal with the practical outworking of Israel's covenant relationship, further emphasizing the seriousness of divine commands and the consequences of their violation.
  • Historical & Cultural Context: In the ancient Near East, the spoken word, especially an oath or vow, carried immense weight and legal force, often serving as the primary form of contract. Unlike modern societies that rely heavily on written agreements, ancient cultures often viewed verbal commitments, particularly those invoked with divine witness, as absolutely binding. A man's reputation, honor, and even his very life were intrinsically tied to his ability to keep his word. Vows were frequently made in times of distress (e.g., Judges 11:30-31), as expressions of thanksgiving, or as acts of dedication (e.g., the Nazirite vow in Numbers 6). To break such a vow was not merely a social slight or a breach of human trust but a grave offense against the deity invoked, inviting severe divine judgment. This pervasive cultural backdrop illuminates the profound gravity of the command in Numbers 30:2, situating it within a framework where the divine realm was understood to actively witness, enforce, and judge human promises.
  • Key Themes: Numbers 30:2 contributes powerfully to several overarching themes within the Pentateuch and the broader biblical narrative. Firstly, it champions the Sanctity of the Spoken Word, elevating verbal commitments to a sacred level, particularly when made to God. This principle directly reflects the character of God Himself, whose word is always true, reliable, and eternally binding (as affirmed in Psalm 33:4). Secondly, the verse underscores the theme of Personal Integrity and Faithfulness, positing that a person's character is fundamentally revealed by their adherence to their promises. This aligns with the broader call for Israel to be a holy people, reflecting God's own faithfulness in their daily lives and interactions, as seen in ethical commands like those found in Leviticus 19:11). Thirdly, the verse highlights Divine Witness and Accountability, establishing God as the ultimate guarantor and enforcer of vows made in His name. Breaking such a vow is not merely a human transgression but a direct affront to the Lord, emphasizing the profound spiritual consequences of unfulfilled commitments and the ever-present gaze of a holy God.

EXPOSITION AND ANALYSIS

Key Word Analysis

  • Vow (Hebrew, neder', H5088): (נֶדֶר, H5088) This term refers to a voluntary promise or dedication made to God, often involving a specific act of devotion, sacrifice, or abstinence. Unlike a command originating from God, a neder springs from the individual's free will, making its fulfillment an even greater demonstration of personal piety, reverence, and commitment. It could involve dedicating property, abstaining from certain foods or drink, or performing a specific service.
  • Oath (Hebrew, shᵉbûwʻâh', H7621): (שְׁבוּעָה, H7621) An oath is a sworn statement, often invoking the name of God as a witness or guarantor of truth. While a vow is typically a promise to do something, an oath is a solemn affirmation of truth or a pledge to abide by a certain declaration. The invocation of God's name in an oath made it exceptionally serious, placing the one swearing under divine judgment if the oath was violated or found to be false.
  • Bind his soul with a bond (Hebrew, _ʼâçar ʼĕçâr al-nephesh'_, H631): (אֶסַר עַל־נַפְשׁוֹ, H631, H632, H5315) This vivid idiomatic phrase literally means "to bind a bond upon his soul" or "to impose an obligation upon himself." It powerfully conveys the idea of a self-imposed, inescapable obligation that affects one's very being. It signifies that the commitment is not merely external but becomes an intrinsic part of the person's spiritual and moral identity, making its breach a violation of the soul itself, a profound internal defilement.
  • Shall not break his word (Hebrew, châlal_ _dâbâr', H2490): (לֹא יַחֵל דְּבָרוֹ, H2490, H1697) The verb "break" (חָלַל, châlal) often means "to profane," "to defile," or "to violate." Thus, "he shall not break his word" carries the strong connotation that to fail in fulfilling a vow or oath is not merely to neglect a promise, but to profane or desecrate the sacredness of the spoken word, especially when God has been invoked as a witness. It implies a violation of divine honor and trust, a defilement of the very act of speaking a sacred commitment.

Verse Breakdown

  • "If a man vow a vow unto the LORD": This opening clause establishes the specific context: a voluntary, solemn promise made by an individual man (ʼîysh, H376). The phrase "unto the LORD" (Yᵉhôvâh, H3068) is crucial, indicating that God Himself is the recipient and ultimate witness of the vow, elevating it from a mere human agreement to a sacred covenant with the Divine. The repetition of "vow a vow" (נֶדֶר יִדֹּר, neder yiddor) emphasizes the deliberate, intentional, and weighty nature of such a commitment, highlighting that it is not a casual utterance.
  • "or swear an oath to bind his soul with a bond": This expands the scope to include oaths, which are sworn declarations, often invoking God's name to guarantee truth or commitment. The phrase "to bind his soul with a bond" vividly portrays the self-imposed, inescapable nature of the obligation. It signifies that the individual's very being, his "soul" or life-force (nephesh, H5315), is pledged and bound by the spoken word, making the commitment profoundly personal and spiritually weighty, a self-imposed spiritual tether.
  • "he shall not break his word": This is a direct, negative command prohibiting the violation of such a sacred commitment. The Hebrew verb implies profaning, defiling (châlal, H2490), or rendering void the word (dâbâr, H1697). It highlights that the spoken word, once uttered in this context, takes on a sacred quality that must not be debased or rendered void. This clause underscores the absolute immutability and inviolability of the promise once made before God.
  • "he shall do according to all that proceedeth out of his mouth": This positive command reinforces the previous prohibition, mandating complete and faithful fulfillment. It emphasizes that every aspect of the spoken commitment, "all that proceedeth (yâtsâʼ, H3318) out of his mouth (peh, H6310)," must be carried out precisely as declared. This stresses the importance of precision, integrity, and absolute faithfulness in speech, especially when dealing with God, and serves as a powerful call to unreserved obedience to one's own solemn declarations.

Literary Devices

The verse employs several potent literary devices to convey its profound message. Repetition is evident in the Hebrew "vow a vow" (נֶדֶר יִדֹּר, neder yiddor) and the conceptual repetition inherent in "bind his soul with a bond" (לֶאְסֹר אִסָּר, le'esor issar), which serves to amplify and emphasize the deliberate and binding nature of such commitments. This Emphasis underscores the gravity of the act and the solemnity required. The phrase "bind his soul with a bond" functions as a powerful Metaphor, portraying the abstract concept of a promise as a physical restraint, an unbreakable tether on one's very being, highlighting the inescapable personal accountability. The use of clear, prescriptive Legal Language is central, presenting these commands as divine statutes with explicit consequences for adherence or violation, reflecting the foundational covenantal framework of the Mosaic Law. Furthermore, the verse's concise, declarative structure lends it an air of Authority and finality, leaving no room for ambiguity regarding the divine expectation for absolute faithfulness.

THEOLOGICAL AND THEMATIC CONNECTIONS

Numbers 30:2 profoundly connects to the biblical understanding of God's own character as faithful and true, a God whose word never fails and whose promises are eternally reliable. Just as God is utterly trustworthy in His covenants and declarations, He expects His people to reflect that same integrity in their own speech, especially when invoking His name or making commitments to Him. This principle extends beyond literal vows to encompass all forms of truthfulness and reliability in communication, serving as a cornerstone for ethical living within the covenant community and fostering trust among its members. It reminds believers that words are not empty utterances but carry spiritual weight, holding the speaker accountable before a holy God who hears and remembers every declaration. The command underscores that true piety is not merely external ritual but an internal commitment to truth and faithfulness in all areas of life.

REFLECTION AND APPLICATION

While the specific cultural practice of making formal vows and oaths "unto the LORD" might seem distant to contemporary believers, the underlying spiritual principle of Numbers 30:2 remains powerfully relevant and universally applicable. This verse calls us to a profound level of integrity, intentionality, and seriousness in all our spoken commitments, recognizing that our words carry immense weight not just with others, but ultimately before God Himself. It challenges us to be people whose "yes" means "yes" and whose "no" means "no," reflecting the unwavering faithfulness and truthfulness of our Creator. This applies to promises made in casual conversation, commitments in family relationships, pledges in the workplace, and especially to declarations made in prayer, worship, or during significant life events like marriage or baptism. It encourages us to think carefully and prayerfully before we speak, to be deliberate in our declarations, and to cultivate a character marked by trustworthiness and reliability. By doing so, we honor God, build trust in our relationships, and demonstrate a life lived in alignment with divine truth.

Questions for Reflection

  • In what areas of my life do I tend to make casual promises or commitments without fully considering their weight?
  • How does the idea of God as an active witness to my spoken word impact my approach to personal integrity and truthfulness?
  • What practical steps can I take to ensure my "yes" is truly "yes" and my "no" is truly "no" in all my interactions?
  • How can cultivating unwavering integrity in my speech and commitments reflect the character of Christ to those around me and bring glory to God?

FAQ

What is the difference between a "vow" and an "oath" in this context?

Answer: While closely related and both carrying divine accountability, a "vow" (נֶדֶר, neder) is typically a voluntary promise to perform a specific action or dedicate something to God, often in exchange for a divine favor or as an act of devotion. Examples include abstaining from certain things (like the Nazirite vow in Numbers 6) or dedicating possessions. An "oath" (שְׁבוּעָה, shᵉbûwʻâh), on the other hand, is a sworn statement, often invoking God's name, to affirm the truth of something or to guarantee the fulfillment of a pledge. It is a solemn appeal to God as a witness to the truthfulness of one's words or intentions. Both carry the full weight of divine accountability and demand meticulous fulfillment.

Does this command apply to Christians today, given Jesus' teaching on oaths in Matthew 5?

Answer: Yes, the underlying principle of integrity and faithfulness in speech absolutely applies to Christians today, though the specific manner of making vows and oaths has been recontextualized and intensified by Christ. In Matthew 5:33-37, Jesus does not abolish the Old Testament command to keep one's word, but rather elevates it to a higher standard. He teaches against the casual or manipulative use of oaths to lend credibility to one's statements, implying that a believer's ordinary speech should be so inherently truthful and reliable that no oath is ever needed to confirm it. The emphasis shifts from the legalistic fulfillment of a sworn oath to a pervasive, internal integrity where one's simple "yes" or "no" is sufficient and trustworthy. Thus, Numbers 30:2 remains profoundly relevant as a call to radical honesty and unwavering reliability in all our communications, reflecting the very character of God.

CHRIST-CENTERED FULFILLMENT

Numbers 30:2, with its profound emphasis on the inviolable nature of a spoken word and the absolute necessity of fulfilling one's commitments to God, finds its ultimate fulfillment and perfect embodiment in the person and work of Jesus Christ. He is the very "Amen," the faithful and true witness (Revelation 3:14), in whom all of God's magnificent promises find their definitive "Yes" (2 Corinthians 1:20). Unlike humanity, who often "break their word" and falter in their commitments, Jesus perfectly fulfilled every promise, every prophecy, and every jot and tittle of the Law (Matthew 5:17). His earthly life was a seamless demonstration of absolute integrity, where His "yes" was always "yes" and His "no" always "no" (Matthew 5:37), requiring no external oath to validate His truthfulness. Furthermore, Christ Himself is the ultimate "bond" by which God's covenant promises are secured for humanity. Through His perfect obedience, His sacrificial death on the cross, and His glorious resurrection, He established the New Covenant, fulfilling the ancient vows and oaths God made to His people, ushering in an era of grace and truth (Hebrews 8:6). In Him, we see the perfect Man who never "broke His word" but completely "did according to all that proceeded out of His mouth," offering Himself as the spotless Lamb and securing our eternal salvation through His unwavering faithfulness.

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Commentary on Numbers 30 verses 1–2

I. II. Main points1. 2. Sub-points

This law was delivered to the heads of the tribes that they might instruct those who were under their charge, explain the law to them, give then necessary cautions, and call them to account, if there were occasion, for the breach of their vows. Perhaps the heads of the tribes had, upon some emergency of this kind, consulted Moses, and desired by him to know the mind of God, and here they are told it: This is the thing which the Lord has commanded concerning vows, and it is a command still in force.

1.The case supposed is that a person vows a vow unto the Lord, making God a party to the promise, and designing his honour and glory in it. The matter of the vow is supposed to be something lawful: no man can be by his own promise bound to do that which he is already by the divine precept prohibited from doing. Yet it is supposed to be something which, in such and such measures and degrees, was not a necessary duty antecedent to the vow. A person might vow to bring such and such sacrifices at certain times, to give such and such a sum or such a proportion in alms, to forbear such meats and drinks which the law allowed, to fast and afflict the soul (which is specified Num 30:13) at other times besides the day of atonement. And many similar vows might be made in an extraordinary heat of holy zeal, in humiliation for some sin committed or for the prevention of sin, in the pursuit of some mercy desired or in gratitude for some mercy received. It is of great use to make such vows as these, provided they be made in sincerity with due caution. Vows (say the Jewish doctors) are the hedge of separation, that is, a fence to religion. He that vows is here said to bind his soul with a bond. It is a vow to God, who is a spirit, and to him the soul, with all its powers, must be bound. A promise to man is a bond upon the estate, but a promise to God is a bond upon the soul. Our sacramental vows, by which we are bound to no more than what was before our duty, and which neither father nor husband can disannul, are bonds upon the soul, and by them we must feel ourselves bound out from all sin and bound up to the whole will of God. Our occasional vows concerning that which before was in our own power (Act 5:4), when they are made, are bonds upon the soul likewise. 2. The command given is that these vows be conscientiously performed: He shall not break his word, though afterwards he may change his mind, but he shall do according to what he has said. Margin, He shall not profane his word. Vowing is an ordinance of God; if we vow in hypocrisy we profane that ordinance: it is plainly determined, Better not vow than vow and not pay, Ecc 5:5. Be not deceived, God is not mocked. His promises to us are yea and amen, let not ours to him be yea and nay.

Matthew Henry (1662–1714) — Commentary on the Whole Bible. This section covers verses 1–2. Public domain.
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Procopius of GazaAD 528
CATENA ON THE OCTATEUCH, ON NUMBERS 30:2
If it is a serious matter to lie to another person, how much more to lie to God. When Scripture describes his majesty, it says that God is in heaven above, and you are on the earth below. This passage was written for us to imitate God, who said, “I will not break my covenant.” He says this about the life of each man: that is, if one has vowed abstinence from food, or shaving his head, or the offering of a sheep or a calf. Malachi commands that the best offerings should be brought forth when he says, “Cursed is he who has a male animal in his flock and makes a vow and then offers a blemished animal to the Lord.”The daughter of Jephthah preferred to undergo death rather than to render her father’s vow unfulfilled and mendacious. She did not know that she was the type of the saving Victim, whom she prefigured in herself. For this reason Jephthah’s deed was immune to guilt. It is not a model, because it does not follow the law. The deed was permitted only once, as a sign, for God rejects human sacrifice.
Moreover, what is undertaken by children to the disgrace of their parents does not merit the name of vow, despite those wicked doctors and teachers who tell their parents that “whatever you would have received from me is Corban.” For God commands us to honor father and mother in all cases.
A man who infringes on the vow of his new bride, which she made without her father’s approval, [does not sin]. The same applies to a married man who does not consent to a vow his wife made. For what is vowed when the woman is subject to a greater power, if it is not carried out, does not make her guilty. But if the woman becomes a widow or is separated from her husband, her vow is binding. This ancient institution of God is confirmed because the woman was made for the sake of the man, and it is just for her to obey him. There is also that verse from Paul, that the woman should revere the man.
Scripture gives a similar explanation for matters concerning affliction of the soul, fasting and other practices, when it says, concerning the month of fasting, “In that month you will afflict your souls.”
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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