Leviticus 27:7-9

New King James Version

⁷ and if from sixty years old and above, if it is a male, then your valuation shall be fifteen shekels, and for a female ten shekels.

⁸ ‘But if he is too poor to pay your valuation, then he shall present himself before the priest, and the priest shall set a value for ^(A)him; according to the ability of him who vowed, the priest shall value him.

⁹ ‘If it is an animal that men may bring as an offering to the Lord, all that anyone gives to the Lord shall be holy.