Leviticus 27:31-33

Amplified Bible, Classic Edition

³¹ And if a man wants to redeem any of his tithe, he shall add a fifth to it.

³² And all the tithe of the herd or of the flock, whatever passes under the herdsman’s staff [by means of which each tenth animal as it passes through a small door is selected and marked], the tenth shall be holy to the Lord.^(A)

³³ The man shall not examine whether the animal is good or bad nor shall he exchange it. If he does exchange it, then both it and the animal substituted for it shall be holy; it shall not be redeemed.