Leviticus 27:8-10

International Standard Version

⁸ But if he is too poor to be valuated, then cause him to stand before the priest and let the priest set a value on him according to the ability^[a] of the one making the vow.

⁹ “If it’s an animal from which they make an offering to the Lord, everything that he gives to the Lord from it will be holy. ¹⁰ He is not to substitute it or exchange it—the good with the bad or the bad with the good. If he ever makes an exchange of an animal for an animal, then it and what’s being exchanged is holy.