Exodus 40:14

12“You shall bring Aaron and his sons to the door of the Tent of Meeting, and shall wash them with water.

13You shall put on Aaron the holy garments; and you shall anoint him, and sanctify him, that he may minister to me in the priest’s office.

14You shall bring his sons, and put tunics on them.

15You 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.”

16Moses did so. According to all that the LORD commanded him, so he did.