Leviticus 22:3; Leviticus 22:4; Leviticus 22:9

3 “Say to them: ‘For the generations to come, if any of your descendants is ceremonially unclean and yet comes near the sacred offerings that the Israelites consecrate to the LORD, that person must be cut off from my presence. I am the LORD.

4 “ ‘If a descendant of Aaron has a defiling skin disease or a bodily discharge, he may not eat the sacred offerings until he is cleansed. He will also be unclean if he touches something defiled by a corpse or by anyone who has an emission of semen,

9 “ ‘The priests are to perform my service in such a way that they do not become guilty and die for treating it with contempt. I am the LORD, who makes them holy.