“Then bring near to you Aaron your brother, and his sons with him, from among the people of Israel, to serve me as priests—Aaron and Aaron's sons, Nadab and Abihu, Eleazar and Ithamar.
to be a reminder to the people of Israel, so that no one who is not a priest, who is not of the descendants of Aaron, should draw near to burn incense before the Lord, lest he become as Korah and as his company—as the Lord said to Eleazar through Moses.
and he said to Korah and all his company, “In the morning the Lord will show who is his, and who is holy, and will cause him to come near to him; him whom he will choose he will cause to come near to him.
And you and your sons with you shall attend to your priesthood for all that concerns the altar and that is within the veil; and you shall serve. I give your priesthood as a gift, and any one else who comes near shall be put to death.”