Leviticus 16:6

16:6 Then Aaron is to present the sin offering bull which is for himself and is to make atonement on behalf of himself and his household.

Leviticus 16:16

16:16 So he is to make atonement for the holy place from the impurities of the Israelites and from their transgressions with regard to all their sins, and thus he is to do for the Meeting Tent which resides with them in the midst of their impurities.

Leviticus 16:18-19

16:18 “Then he is to go out to the altar which is before the Lord and make atonement for it. He is to take some of the blood of the bull and some of the blood of the goat, and put it all around on the horns of the altar. 16:19 Then he is to sprinkle on it some of the blood with his finger seven times, and cleanse and consecrate it from the impurities of the Israelites.

Leviticus 16:24

16:24 Then he must bathe his body in water in a holy place, put on his clothes, and go out and make his burnt offering and the people’s burnt offering. So he is to make atonement on behalf of himself and the people.

Exodus 20:25-26

20:25 If you make me an altar of stone, you must not build it of stones shaped with tools, for if you use your tool on it you have defiled it. 20:26 And you must not go up by steps to my altar, so that your nakedness is not exposed.’