"Summon your brother Aaron and his sons, Nadab, Abihu, Eleazar, and Ithamar. Separate them from the people of Israel, so that they may serve me as priests.

Then he said to Korah and his followers, "Tomorrow morning the LORD will show us who belongs to him; he will let the one who belongs to him, that is, the one he has chosen, approach him at the altar.

This was a warning to the Israelites that no one who was not a descendant of Aaron should come to the altar to burn incense for the LORD. Otherwise he would be destroyed like Korah and his men. All this was done as the LORD had commanded Eleazar through Moses.

But you and your sons alone shall fulfill all the responsibilities of the priesthood that concern the altar and what is in the Most Holy Place. These things are your responsibility, because I have given you the gift of the priesthood. Any unqualified person who comes near the sacred objects shall be put to death."