Then Jethro, Moses’ father-in-law, came with his sons and his wife to Moses in the wilderness where he was camped, at the mount of God.

He sent word to Moses, “I, your father-in-law Jethro, am coming to you with your wife and her two sons with her.”

Then you shall take some of the blood that is on the altar and some of the anointing oil, and sprinkle it on Aaron and on his garments and on his sons and on his sons’ garments with him; so he and his garments shall be consecrated, as well as his sons and his sons’ garments with him.

“Then bring near to yourself Aaron your brother, and his sons with him, from among the sons of Israel, to minister as priest to Me—Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron’s sons.

It shall be for Aaron and his sons as their portion forever from the sons of Israel, for it is a heave offering; and it shall be a heave offering from the sons of Israel from the sacrifices of their peace offerings, even their heave offering to the Lord.