Exodus 40:15 in the King James Version
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.
Context
14 You shall bring his sons, and put tunics on them.
15 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.”
16 Moses did so. According to all that the LORD commanded him, so he did.