Exodus 40:15 in the World English Bible
You shall anoint them, as you anointed their father, that they may minister to me in the priest’s office. Their anointing shall be to them for an everlasting priesthood throughout their generations.”
Context
14 And thou shalt bring his sons, and clothe them with coats:
15 And thou shalt anoint them, as thou didst anoint their father, that they may minister unto me in the priest’s office: for their anointing shall surely be an everlasting priesthood throughout their generations.
16 Thus did Moses: according to all that the LORD commanded him, so did he.