Numbers 30:13-16

13“A husband decides whether or not his wife has to keep any vow to do something or any oath to do without something.

14If he says nothing to her about it day after day, this means he’s decided that she must keep her vow or oath. She must keep it because he said nothing to her when he heard about it.

15But if he cancels it later, he will suffer the consequences.”

16These are the laws the Lord gave Moses for husbands and wives, and for fathers with young daughters still living at home.