Leviticus 27:7-9

Revised Standard Version

⁷ And if the person is sixty years old and upward, then your valuation for a male shall be fifteen shekels, and for a female ten shekels. ⁸ And if a man is too poor to pay your valuation, then he shall bring the person before the priest, and the priest shall value him; according to the ability of him who vowed the priest shall value him.

⁹ “If it is an animal such as men offer as an offering to the Lord, all of such that any man gives to the Lord is holy.