Leviticus 22:20-22

You must not present anything that has a flaw, because it will not be acceptable for your benefit. If a man presents a peace offering sacrifice to the LORD for a special votive offering or for a freewill offering from the herd or the flock, it must be flawless to be acceptable; it must have no flaw. “‘You must not present to the LORD something blind, or with a broken bone, or mutilated, or with a running sore, or with a festering eruption, or with a feverish rash. You must not give any of these as a gift on the altar to the LORD.