“He shall not examine whether it is good or bad, neither shall he exchange it. If he exchanges it at all, then both it and that for which it is exchanged shall be holy. It shall not be redeemed.’”
Leviticus 27:33 (WEB)
Context Reading
31If a man redeems anything of his tithe, he shall add a fifth part to it. 32All the tithe of the herds or the flocks, whatever passes under the rod, the tenth shall be holy to Yahweh. 33He shall not examine whether it is good or bad, neither shall he exchange it. If he exchanges it at all, then both it and that for which it is exchanged shall be holy. It shall not be redeemed.’” 34These are the commandments which Yahweh commanded Moses for the children of Israel on Mount Sinai.