Leviticus 16:3-10

3“In this way shall Aaron come into the Sanctuary: with a young bull for a sin offering and a ram for a burnt offering.

4He is to put on the holy linen garment, have the linen undergarments on his body, put on the linen sash, and wear the linen turban—they are the holy garments. He shall bathe his body in water, and put them on.

5“Then he is to take from the congregation of Bnei-Yisrael two he-goats for a sin offering and one ram for a burnt offering.

6Then Aaron is to offer the bull for the sin offering which is for himself and make atonement for himself and his house.

7Then he is take the two goats and present them before Adonai at the entrance of the Tent of Meeting.

8Aaron will then cast lots for the two goats—one lot for Adonai, and the other lot for the scapegoat.

9Aaron is to present the goat on which the lot for Adonai fell and make it a sin offering.

10But the goat upon which the lot for the scapegoat fell is to be presented alive before Adonai, to make atonement upon it, by sending it away as the scapegoat into the wilderness.