Jethro, Moses' father-in-law, came with his sons and his wife to Moses into the wilderness where he was encamped, at the Mountain of God.

He said to Moses, "I, your father-in-law Jethro, have come to you with your wife, and her two sons with her."

You shall take of the blood that is on the altar, and of the anointing oil, and sprinkle it on Aaron, and on his garments, and on his sons, and on the garments of his sons with him: and he shall be made holy, and his garments, and his sons, and his sons' garments with him.