to make a binding promise to God: to pledge a gift, an act, or a person to the deity, usually in return for help
This is the verb behind one of the most distinctive religious acts in the Bible: a person, on their own initiative, makes a solemn promise directly to God. Across every occurrence the core stays the same. Someone commits to give God something, most often if God first does something for them. The classic shape is "if you do this for me, then I will do that for you," and a vow stays binding until it is paid.
The senses below are not different meanings of the word. They are the same act seen in different settings. In the narratives a person in trouble strikes a bargain with God (Jacob fleeing, Israel facing Arad, Hannah longing for a child). In the books of law and worship the same act is brought under careful rules and is performed at the sanctuary, where the stress falls on paying what was promised and not cheating God. And in one special case a person vows themselves, or their child, into a set-apart life of devotion.
What ties all of this together is direction and obligation. The promise is always made to God, and once spoken it creates a real debt the speaker must discharge. That is why the Bible both prizes the vow as a heartfelt act of faith and repeatedly warns against making one rashly or failing to keep it.
Nuances
Disputed
Whether making a vow is conditional by definition, or whether conditionality is merely its most frequent feature.
- majorityA vow is conditional by definition: an "if God does X, I will do Y" bargain, categorically distinct from a freewill gift, an oath, and the ban.; Tony W. Cartledge, Vows in the Hebrew Bible and the Ancient Near East (JSOTSup 147; Sheffield Academic Press, 1992); G. Wehmeier, "נדר nḏr to vow," Theological Lexicon of the Old Testament (TLOT), vol. 2 (Hendrickson, 1997), 719-22
- minorityConditionality is typical but not definitional; in the priestly and legal texts the word can flatten toward simple dedication, and the Nazirite vow looks like an unconditional act of consecration.; Baruch A. Levine, Numbers 21-36 (Anchor Bible 4A; Doubleday, 2000), 435; G.B. Gray, A Critical and Exegetical Commentary on Numbers (ICC; T&T Clark, 1903)