“You shall bring Aaron and his sons to the door of the Tent of Meeting, and shall wash them with water.”
Exodus 40:12 (WEB)
Context Reading
10You shall anoint the altar of burnt offering, with all its vessels, and sanctify the altar, and the altar will be most holy. 11You shall anoint the basin and its base, and sanctify it. 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.