Leviticus 27:7-9

New Catholic Bible

⁷ If a person is sixty years old or older, the estimation of the value of a male is fifteen shekels and the estimation of the value of a female is ten shekels. ⁸ But if anyone is too poor to pay the estimated value, then he will present himself before the priest and the priest will make an estimation based on the ability of the person vowing to pay. The priest will establish the value.

⁹ “If he brings an animal as an offering to the Lord, then everything that he has given to the Lord will be holy.