Yet they shall be ministers in my sanctuary, having oversight at the gates of the house, and ministering in the house. They shall kill the burnt offering and the sacrifice for the people, and they shall stand before them to minister to them.
Bring your brothers also, the tribe of Levi, the tribe of your father, near with you, that they may be joined to you, and minister to you; but you and your sons with you shall be before the Tent of the Testimony.
Nadab and Abihu died before the LORD when they offered strange fire before the LORD in the wilderness of Sinai, and they had no children. Eleazar and Ithamar ministered in the priest’s office in the presence of Aaron their father.
and Aaron shall offer the Levites before the LORD for a wave offering on the behalf of the children of Israel, that it may be theirs to do the service of the LORD.