Leviticus 27:1-13

GOD spoke to Moses: He said, “Speak to the People of Israel. Tell them, If anyone wants to vow the value of a person to the service of GOD, set the value of a man between the ages of twenty and sixty at fifty shekels of silver, according to the Sanctuary shekel. For a woman the valuation is thirty shekels. If the person is between the ages of five and twenty, set the value at twenty shekels for a male and ten shekels for a female. If the person is between one month and five years, set the value at five shekels of silver for a boy and three shekels of silver for a girl. If the person is over sixty, set the value at fifteen shekels for a man and ten shekels for a woman. If anyone is too poor to pay the stated amount, he is to present the person to the priest, who will then set the value for him according to what the person making the vow can afford. “If he vowed an animal that is acceptable as an offering to GOD, the animal is given to GOD and becomes the property of the Sanctuary. He must not exchange or substitute a good one for a bad one, or a bad one for a good one; if he should dishonestly substitute one animal for another, both the original and the substitute become property of the Sanctuary. If what he vowed is a ritually unclean animal, one that is not acceptable as an offering to GOD, the animal must be shown to the priest, who will set its value, either high or low. Whatever the priest sets will be its value. If the owner changes his mind and wants to redeem it, he must add twenty percent to its value.