TSK
Treasury of Scripture Knowledge references in NET.
The Lord Ratifies the Covenant But to Moses the LORD said,“Come up to the LORD, you and Aaron, Nadab and Abihu, and seventy of the elders of Israel, and worship from a distance.
and wrap the sashes around Aaron and his sons and put headbands on them, and so the ministry of priesthood will belong to them by a perpetual ordinance. Thus you are to consecrate Aaron and his sons.
Perpetual Statutes Moses spoke to Aaron Then Moses spoke to Aaron and to Eleazar and Ithamar, his remaining sons,“Take the grain offering which remains from the gifts of the LORD and eat it unleavened beside the altar, for it is most holy.
Nadab and Abihu died before the LORD when they offered strange fire before the LORD in the desert of Sinai, and they had no children. So Eleazar and Ithamar ministered as priests in the presence of Aaron their father.
But you and your sons with you are responsible for your priestly duties, for everything at the altar and within the curtain. And you must serve. I give you the priesthood as a gift for service, but the unauthorized person who approaches must be put to death.”