New Revised Standard Version
Speak to the people of Israel and say to them: When a person makes an explicit vow to the LORD concerning the equivalent for a human being,

Contemporary English Version
to say to the community of Israel: If you ever want to free someone who has been promised to me,

New American Bible
Speak to the Israelites and tell them: When anyone makes a vow to the LORD with respect to the value of a human being,

Douay-Rheims Bible
Speak to the children of Israel, and thou shalt say to them: The man that shall have made a vow, and promised his soul to God, shall give the price according to estimation.

Speak to the children of Israel, and thou shalt say to them: The man that shall have made a vow, and promised his soul to God, shall give the price according to estimation.

When

Genesis 28:20-22 And he made a vow, saying: If God shall be with me, and shall keep me in the way, by which I walk, and shall give me bread to eat, and raiment to put on, . . .

Numbers 6:2 Speak to the children of Israel, and thou shalt say to them: When a man, or woman, shall make a vow to be sanctified, and will consecrate themselves to the Lord:

Numbers 21:2 But Israel binding himself by vow to the Lord, said: If thou wilt deliver thus people into my hand, I will utterly destroy their cities.

Deuteronomy 23:21-23 When thou hast made a vow to the Lord thy God, thou shalt not delay to pay it: because the Lord thy God will require it. And if thou delay, it shall be imputed to thee for a sin. . . .

Judges 11:30,31,39 He made a vow to the Lord, saying: If thou wilt deliver the children of Ammon into my hands, . . .

1 Samuel 1:11,28 And she made a vow, saying: O Lord of hosts, if thou wilt look down, and wilt be mindful of me, and not forget thy handmaid, and wilt give to thy servant a manchild: I will give him to the Lord all the days of his life, and no razor shall come upon his head. . . .

), or the devoting of something to the Lord, as sacrifices (

Leviticus 7:16 If any man by vow, or of his own accord offer a sacrifice, it shall in like manner be eaten the same day. And if any of it remain until the morrow, it is lawful to eat it.

), or the value of persons, beasts, houses, or lands, concerning which the law is her given. A man might vow or devote himself, his children, his domestics, his cattle, his goods, etc. and respecting the redemption of all these, rules are laid down in this chapter. But if, after consecrating these things, he refused to redeem them, they then became the Lord's property forever. The persons continued all their lives devoted to the sanctuary, the goods were sold for the profit of the temple, or the priests; and the animals, if clean, were offered in sacrifice; and if not proper for sacrifice, were sold, and the proceeds devoted to sacred uses. This is a general view of the different laws relative to vows, mentioned in this chapter.

Ecclesiastes 5:4,5 If thou hast vowed any thing to God, defer not to pay it: for an unfaithful and foolish promise displeaseth him: but whatsoever thou hast vowed, pay it. . . .