Leviticus 16
23 Ref "Aaron shall come into the Tent of Meeting, and shall take off the linen garments, which he put on when he went into the Holy Place, and shall leave them there.
24 Ref Then he shall bathe himself in water in a holy place, and put on his garments, and come out and offer his burnt offering and the burnt offering of the people, and make atonement for himself and for the people.