Numbers 30:1-3

1Moses said to the heads of the tribes of Israel, “This is what the Lord has commanded ⌞about vows⌟:

2If a man makes a vow to the Lord that he will do something or swears an oath that he won’t do something, he must not break his word. He must do everything he said he would do.

3“A young girl, who still lives in her father’s house, might make a vow to the Lord that she will do something or swear an oath that she won’t do something.