33 You shall not change a good for a bad, or a bad for a good; and if you should at all change it, its equivalent also shall be holy, it shall not be redeemed.
Leviticus 27:33 Cross References - CAB
Leviticus 27:10
10 He shall not change it, a good for a bad, or a bad for a good; and if he shall change it, a beast for a beast, it and the substitute shall be holy.