Leviticus 27:2-13

2“Speak to Bnei-Yisrael and say to them: When anyone makes a special vow to Adonai involving the valuation of persons,

3then your valuation of a male from 20 years old to 60 years old shall be 50 shekels of silver, after the shekel of the Sanctuary.

4If it is a female, then your valuation shall be 30 shekels.

5If the person is from five years to 20 years old, then your valuation is to be 20 shekels for a male and ten shekels for a female.

6If the person is from one month to five years old, then your valuation is to be five shekels of silver for a male and three shekels of silver for a female.

7If the person is from 60 years old and upward, if it is a male, then your valuation is to be 15 shekels and for a female ten shekels.

8But if he is poorer than your valuation, then he is to be set before the kohen and the kohen will set a value for him, in keeping with what the one who made the vow can afford.

9“Now if it is an animal that may be brought as an offering to Adonai, anything that one gives to Adonai will be holy.

10He is not to replace it or exchange it, either good for bad, or bad for good. But if he does exchange one animal for another, then both it and the one for which it is exchanged will become holy.

11If it is any sort of unclean animal that may not be brought as an offering to Adonai, then he is to set that animal before the kohen.

12The kohen is to evaluate it, whether it is good or bad. As the kohen values it, so it will be.

13But if he would redeem it, then he is to add a fifth to its valuation.