Then bring near to you your brother Aaron, and his sons with him, from among the Israelites, to serve me as priests—Aaron and Aaron's sons, Nadab and Abihu, Eleazar and Ithamar.
The sons of Amram: Aaron and Moses. Aaron was set apart to consecrate the most holy things, so that he and his sons forever should make offerings before the Lord, and minister to him and pronounce blessings in his name forever;
The Levites had left their common lands and their holdings and had come to Judah and Jerusalem, because Jeroboam and his sons had prevented them from serving as priests of the Lord,
You shall put them on your brother Aaron, and on his sons with him, and shall anoint them and ordain them and consecrate them, so that they may serve me as priests.
and you shall gird them with sashes and tie headdresses on them; and the priesthood shall be theirs by a perpetual ordinance. You shall then ordain Aaron and his sons.
the finely worked vestments for ministering in the holy place, the holy vestments for the priest Aaron, and the vestments of his sons, for their service as priests.
Now Aaron's sons, Nadab and Abihu, each took his censer, put fire in it, and laid incense on it; and they offered unholy fire before the Lord, such as he had not commanded them.
Moses spoke to Aaron and to his remaining sons, Eleazar and Ithamar: Take the grain offering that is left from the Lord's offerings by fire, and eat it unleavened beside the altar, for it is most holy;
This is the portion allotted to Aaron and to his sons from the offerings made by fire to the Lord, once they have been brought forward to serve the Lord as priests;
But you and your sons with you shall diligently perform your priestly duties in all that concerns the altar and the area behind the curtain. I give your priesthood as a gift; any outsider who approaches shall be put to death.
I chose him out of all the tribes of Israel to be my priest, to go up to my altar, to offer incense, to wear an ephod before me; and I gave to the family of your ancestor all my offerings by fire from the people of Israel.