Numbers 30:8-12

8But if her husband disapproves of her [making her vow or pledge] on the day that he hears of it, then he shall annul her vow which she is under and the rash statement of her lips by which she bound herself; and the Lord will forgive her.

9“But the vow of a widow or of a divorced woman, everything by which she has bound herself, shall stand against her.

10However, if she vowed in her husband’s house or bound herself by a pledge with an oath,

11and her husband heard it, but said nothing to her and did not disapprove of her [making the vow], then all her vows and every pledge by which she bound herself shall stand.

12But if her husband absolutely annuls them on the day he heard them, then whatever proceeds from her lips concerning her vows or concerning her pledge shall not stand. Her husband has annulled them, and the Lord will forgive her.