'Vows' in the Bible

"'This is the law of the Nazirite who vows, and of his offering to Yahweh for his separation, besides that which he is able to get. According to his vow which he vows, so he must do after the law of his separation.'"

"'You shall offer these to Yahweh in your set feasts, besides your vows, and your freewill offerings, for your burnt offerings, and for your meal offerings, and for your drink offerings, and for your peace offerings.'"

When a man vows a vow to Yahweh, or swears an oath to bind his soul with a bond, he shall not break his word; he shall do according to all that proceeds out of his mouth.

"Also when a woman vows a vow to Yahweh, and binds herself by a bond, being in her father's house, in her youth,

and her father hears her vow, and her bond with which she has bound her soul, and her father holds his peace at her; then all her vows shall stand, and every bond with which she has bound her soul shall stand.

But if her father disallow her in the day that he hears, none of her vows, or of her bonds with which she has bound her soul, shall stand: and Yahweh will forgive her, because her father disallowed her.

"If she is [married] to a husband, while her vows are on her, or the rash utterance of her lips, with which she has bound her soul,

and her husband hear it, and hold his peace at her in the day that he hears it; then her vows shall stand, and her bonds with which she has bound her soul shall stand.

and her husband heard it, and held his peace at her, and didn't disallow her; then all her vows shall stand, and every bond with which she bound her soul shall stand.

But if her husband made them null and void in the day that he heard them, then whatever proceeded out of her lips concerning her vows, or concerning the bond of her soul, shall not stand: her husband has made them void; and Yahweh will forgive her.

But if her husband altogether hold his peace at her from day to day, then he establishes all her vows, or all her bonds, which are on her: he has established them, because he held his peace at her in the day that he heard them.