Leviticus 27:31-33

Modern English Version

³¹ If a man plans on redeeming some of his tithe, he shall add one-fifth to it. ³² Any tithe of herd or flock, all that passes under the counting staff, the tenth one shall be holy to the Lord. ³³ A person shall not differentiate between good or bad, nor shall he make a substitute for it, but if he does, then both it and its substitute shall be holy. It shall not be redeemed.