30:1–2 Men’s vows are treated first; the principles expressed here undergird the stipulations concerning women’s vows as well. The expression “The heads of the tribes of the people of Israel” (v. 1) is unique to Numbers (“heads of the tribes of Israel,” 10:4; cf. 1 Kings 8:1). These are “the chiefs of their ancestral tribes, the heads of the clans of Israel” (Num. 1:16; cf. 7:2), twelve in number. They deal with civil affairs, such as the military census. Although the vows in question are those made in a domestic context, they concern the entire community—due to the foundational principle of corporate solidarity—and thus these tribal heads. Saul breaks the vow made to the Gibeonites by Joshua, for which the Israelites suffer under David’s reign (2 Sam. 21:1–2; cf. Josh. 9:3–17).

Although unspecified, given the preceding context (Numbers 28–29) the vows probably involve the ceremonial domain, such as donations vowed to the sanctuary (Leviticus 27), votive offerings (Num. 6:21), or a Nazirite vow (ch. 6). A vow is made “to the Lord” (30:2, 3), often in a time of trouble (Ps. 66:13–14) and as a conditional promise. For example, if God would protect him, Jacob vowed to worship him (Gen. 28:20–22); if God gave victory over the Canaanites, Israel vowed to devote them to destruction (Num. 21:2); if God granted him victory over the Ammonites, Jephthah vowed to offer whatever first came out of his house upon return (Judg. 11:31); if God gave her a son, Hannah vowed to give him to the Lord (1 Sam. 1:11). A vow could involve abstinence: for a Nazirite, from anything from the vine (Num. 6:3); for a woman, from conjugal relations (cf. comment on 30:3–16 [at v. 13]); for militia, from eating before the enemy was defeated (rashly in one instance; 1 Sam. 14:24). Thus vows involve self-imposed obligations to do or not do something.

“Swearing an oath” (Num. 30:2) invokes God’s name (Lev. 19:12; Isa. 65:16; Jer. 4:2; Zech. 5:4; 1 Thess. 5:27), which calls on him as guarantor. This is not conditional, unlike a promissory vow. An oath is sworn concerning an action to be done (Josh. 2:12–17), concerning an action not to be done (Gen. 24:3–8), or that something has not been done (Ex. 22:11; Num. 5:19). It supports a promise (Matt. 14:7; Heb. 6:13–17). God swears by his own name to keep his covenant promise (Gen. 26:3; Deut. 7:8; Ps. 105:9; Ezek. 16:8; Heb. 6:17). A false oath involves breaking faith, a sacrilege (cf. comments on Num. 5:5–10; 5:11–31 [at v. 27]). Action contrary to what is sworn can draw a curse (Num. 5:19–22; 1 Sam. 14:24, 28; Zech. 5:3–4; cf. Mal. 1:14) and divine wrath (Josh. 9:20).

“To bind” (ʾasar, Num. 30:2; “binds,” v. 3) in other contexts refers to physically binding someone (Gen. 42:24) or yoking cows (1 Sam. 6:7; cf. Jer. 46:4, “harness the horses”). “A pledge” (ʾissar; e.g., with the verb “bind,” Num. 30:2, 3, or alone, e.g., v. 4) is a part of the oath that, combined in the expression “binding oath” (shebuʿat ʾissar, v. 13; v. 15 MT), is clearly prohibitive; a woman might pledge to “afflict herself,” for example (cf. comment on 30:3–16 [at v. 13]).219 The equivalent to ʾissar in Aramaic (ʾesar) refers to a prohibitive royal “injunction” (Dan. 6:8, 12, 16 [6:9, 13, 17 MT]).

A vow or an oath “proceeds out of his mouth” (Num. 30:2) or is an “utterance of her lips” (vv. 6, 8; cf. v. 12). The solemnity is underscored by two commands, one prohibitive (“He shall not break his word”) and the other performative (“He shall do according to all that proceeds out of his mouth”; v. 2). “Break his word” is literally “profane [khalal] his word”220 by not fulfilling a vow. A word, in the form of a sworn vow to the Lord, is holy (cf. Section Overview). False oaths necessarily defile those who take them (cf. Matt. 15:19) and profane God’s holy name (Lev. 19:12). No extenuating circumstances permit the voiding of men’s vows.

30:3–16 Four distinct cases concern a woman who makes a vow: (1) “while within her father’s house in her youth,” that is, “a daughter” (vv. 3–5, 16); (2) one who makes a vow before marriage but now “marries a husband” (vv. 6–8); (3) as a “widow” or divorcée (v. 9); (4) when “in her husband’s house” (vv. 10–15). Cases 1 and 4 are the major ones, which are drawn together in the summary (v. 16). Case 2 has ties to both 1 and 4, whereas case 3 stands alone.

The general principle is that a girl’s or woman’s vow is as binding as a man’s. Three concessions are offered. First, if she makes a vow while living in “her father’s house” as a “youth” (naʿarah, perhaps marriageable, even betrothed) and her father hears of the vow and opposes it, the vow does not stand (vv. 3–5). Second, if her vow was made and apparently consented to by (or unknown to?) her father before marriage, but “her husband hears of it” and opposes it, it is nullified (vv. 6–8). Third, if she makes a vow after marriage but her husband, upon hearing it, opposes it, it is void (v. 10–15). This last case includes her vow or oath “to afflict herself” (from ʿanah; v. 13), which involves some form of abstinence. Its omission in the section about oaths made in a father’s house suggests the abstinence is from conjugal relations (cf. 29:7; cf. 1 Cor. 7:2, 4–5; cf. Mishnah, Nashim; Ketubbot 5:6–7). In all these cases a girl’s or a woman’s vow stands, whether made in her father’s or husband’s house, if on “the day that he hears/heard it” (Num. 30:5, 7, 12, 14) “he says/said nothing” (vv. 4, 7, 11, 14). By silence he consents.

As a rule, a woman’s vow stands or falls on her father’s or husband’s assent or dissent. This is summarized in verse 16 “about a man and his wife” and “about a father and his daughter.” In either case she is under a man’s authority. Case 3 concerns vows of widows and divorcées. They have no male domestic authority. They alone bear responsibility should they violate a vow (v. 9).

The binding nature of a vow is underscored by the covenant language expressing it. A woman’s vow “shall stand” (qum; vv. 4, 5, 7, 9, 11 [vv. 5, 6, 8, 11, 12 MT]), being “established” (same vb., vv. 13, 14 [vv. 14, 15 MT]) by her father or husband. Qum is used in Genesis 6:18 for “establish [my covenant]” (Gen. 17:7, 19, 21). The same verb for “making [a vow] null and void” (parar; Num. 30:8, 12, 13, 15 [vv. 9, 13, 15, 17 MT]) is rendered in Genesis 17:14 as “broken [my covenant]” and in Numbers 15:31 as “broken [his commandment].” “Oath” (30:2, 10, 13 [vv. 3, 11, 14 MT]) too is covenant language (Gen. 21:31–32; 26:3; Hos. 10:4). The relationship of the covenant to vows and oaths is stated clearly in Ezekiel 16:8, 59; 17:13, 18–19.

A final rule concerns the one who bears responsibility for a nullified vow, given the general principle that a vow is inviolable. First, as concerns a daughter or a wife, if her vow is nullified by her father or husband, “the Lord will forgive her” (Num. 30:5, 8, 12). “Forgive” (salah) is the opposite of “bear her iniquity” (cf. v. 15). A vow made by a woman before marriage in her youth but now nullified in marriage is called a “thoughtless utterance” (mibtaʾ; vv. 6, 8, only occurrences).221 Her rash vow failed to take into consideration her eventual marriage. Implicitly, a now-married daughter would be forgiven for having made her vow without the approbation of the one in authority over her.

Second, as concerns a husband, “he shall bear her iniquity” (v. 15). “Iniquity” points to either the act itself (breaking a vow) or the consequences (guilt) for breaking it. Does this mean that, by annulling his wife’s vows, he bears the guilt of her not fulfilling them since he prevented her from doing so, even if he does so “on the day that he heard” (beyom shomʿo; v. 14)? “After he has heard” (ʿaharey shomʿo; v. 15) may mean “after [the day] he heard.” In other words, “he shall bear her iniquity” if he voided her vow sometime “after” that fixed delay. The reading “his iniquity” (SP, LXX, Syr.) simplifies the traditional reading by emphasizing his liability, not hers. This case may be analogous to a vow unable to be fulfilled that requires a redemption payment (Leviticus 27). The terms “forgiven” (cf. Num. 30:5) and “bear iniquity” in a domestic context of vows and oaths underscore the concomitant nature of the sacred and domestic domains and the impact of domestic life on the entire community (cf. v. 1).222