Numbers 30:2

Vow a vow.. or swear an oath to bind his soul] The former is a positive vow or vow of performance; the latter is a negative vow or vow of abstinence: see on Leviticus 27.

3-5. Case of an unmarried woman.

6-8. Case of a woman who has entered into a vow while unmarried, but who marries before her vow is fulfilled. The husband has the power either to confirm his wife's vow, or disallow it when he hears of it. The words in Numbers 30:6 should read 'if she be married to a husband while her vows are upon her.'