Leviticus 21:21-23

21No man of the offspring of Aaron the priest who has a blemish shall come near to aoffer the Lord’s food offerings; since he has a blemish, he shall not come near to offer the bread of his God. 22He may eat the bread of his God, both of bthe most holy and of the choly things, 23but he shall not go through the veil or approach the altar, because he has a blemish, that he may not dprofane my sanctuaries, efor I am the Lord who sanctifies them.”

Numbers 3:10

10And you shall appoint Aaron and his sons, and fthey shall guard their priesthood. But if gany outsider comes near, he shall be put to death.”

Numbers 16:40

40to be a reminder to the people of Israel, so hthat no outsider, who is not of the descendants of Aaron, should draw near to burn incense before the Lord, lest he become like Korah and his company—as the Lord said to him through Moses.

Numbers 18:7

7And iyou and your sons with you shall guard your priesthood for all that concerns the altar and jthat is within the veil; and you shall serve. I give your priesthood as a gift,
Hebrew service of gift
and lany outsider who comes near shall be put to death.”

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