Leviticus 27:32-34

New Catholic Bible

³² As to the tithes of the herd or the flock, of everything passing under the herdsman’s staff, the tenth to pass shall be holy to the Lord. ³³ He shall not investigate to see if it is good or bad, nor shall he exchange it for another. If he exchanges it, then the first animal and its substitute shall both be holy and are not to be redeemed.” ³⁴ These are the commandments that the Lord gave to Moses for the children of Israel on Mount Sinai.