gird them with the sashes, and tie the skullcaps on them. Thus shall the priesthood be theirs by a perpetual statute, and thus shall you install Aaron and his sons. Installation Sacrifices.
Moses said to Aaron and his surviving sons, Eleazar and Ithamar, “Take the grain offering left over from the oblations to the Lord, and eat it beside the altar in the form of unleavened cakes, since it is most holy.
But you and your sons with you must take care to exercise your priesthood in whatever concerns the altar and the area within the veil. I give you your priesthood as a gift. Any unauthorized person who comes near shall be put to death. The Priests’ Share of the Sacrifices.
But Nadab and Abihu died in the presence of the Lord when they offered unauthorized fire before the Lord in the wilderness of Sinai; and they left no sons. So only Eleazar and Ithamar served as priests during the lifetime of their father Aaron. Levites in Place of the Firstborn.