'Vows' in the Bible

If a man makes a vow to the Lord or swears an oath to bind himself with a pledge [of abstinence], he shall not break (violate, profane) his word; he shall do according to all that proceeds out of his mouth.

“Also if a woman makes a vow to the Lord and binds herself by a pledge [of abstinence], while living in her father’s house in her youth,

and her father hears her vow and her pledge by which she has bound herself, and he offers no objection, then all her vows shall stand and every pledge by which she has bound herself shall stand.

But if her father disapproves of her [making her vow] on the day that he hears about it, none of her vows or her pledges by which she has bound herself shall stand; and the Lord will forgive her because her father has disapproved of her [making the vow].

“But if she marries while under her vows or if she has bound herself by a rash statement,

and her husband hears of it and says nothing about it on the day he hears it, then her vows shall stand and her pledge by which she bound herself shall stand.

and 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.

But 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.

But if her husband says nothing to her [concerning the matter] from day to day, then he confirms all her vows or all her pledges which are on her. He has confirmed them because he said nothing to her on the day he heard them.