'Vow' in the Bible

“Say to the sons of Israel, ‘When a man or a woman makes a special vow, the vow of a Nazirite, that is, one separated and dedicated to the Lord,

‘All the time of the vow of his separation no razor shall be used on his head. Until the time of his separation to the Lord is completed, he shall be holy, and shall let the hair of his head grow long.

“This is the law for the Nazirite who vows his offering to the Lord for his separation, besides what else he is able to afford, according to the vow which he has vowed; so shall he do according to the law for his separation and abstinence [as a Nazirite].”

then make an offering by fire to the Lord, a burnt offering or a sacrifice to fulfill a special vow, or as a freewill offering or in your appointed feasts, to make a sweet and soothing aroma to the Lord, from the herd or from the flock.

When you prepare a bull as a burnt offering or as a sacrifice, in fulfilling a special vow or peace offering to the Lord,

So Israel made a vow to the Lord, and said, “If You will indeed hand over these people to me, then I will utterly destroy their cities.”

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 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.

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

“Every vow and every binding oath to humble herself, her husband may confirm it or her husband may annul it.