'Vow' in the Bible

But if the sacrifice of his offering be a vow, or a voluntary offering, it shall be eaten the same day that he offereth his sacrifice: and on the morrow also the remainder of it shall be eaten:

“Speak to Aaron and his sons and to all the Israelites and say to them, ‘Any man of the house of Israel or any stranger in Israel who presents his offering, whether to fulfill any of their vows or as any of their freewill (voluntary) offerings which they presented to the Lord as a burnt offering—

And whosoever offereth a sacrifice of peace offerings unto the LORD to accomplish his vow, or a freewill offering in beeves or sheep, it shall be perfect to be accepted; there shall be no blemish therein.

Either a bullock or a lamb that hath any thing superfluous or lacking in his parts, that mayest thou offer for a freewill offering; but for a vow it shall not be accepted.

These are in addition to the offerings for the Lord’s Sabbaths, your gifts, all your vow offerings, and all your freewill offerings that you give to the Lord.

Speak unto the children of Israel, and say unto them, When a man shall make a singular vow, the persons shall be for the LORD by thy estimation.

if your valuation of the vow is for a male from 20 to 60 years old, the valuation is to be 50 shekels of silver, according to the shekel of the sanctuary.

But if one is too poor to pay the assessment, he must present the person before the priest and the priest will set a value for him. The priest will set a value for him according to what the one making the vow can afford.

“If the vow involves one of the animals that may be brought as an offering to the Lord, any of these he gives to the Lord will be holy.

“If the vow involves any of the unclean animals that may not be brought as an offering to the Lord, the animal must be presented before the priest.

If, however, the person who made the vow redeems the animal, he must add one fifth to its conversion value.