Leviticus 16:3-10

3This is how Aaron is to enter the Holy Place: with a young bull for a sin offering and a ram for a burnt offering. 4He is to wear the sacred linen tunic, with linen undergarments. He must tie a linen sash around him and put on the linen turban. These are holy garments, and he must bathe himself with water before he wears them. 5And he shall take from the congregation of Israel two male goats for a sin offering and one ram for a burnt offering.

6Aaron is to present the bull for his sin offering and make atonement for himself and his household. 7Then he shall take the two goats and present them before the LORD at the entrance to the Tent of Meeting.

8After Aaron casts lots for the two goats, one for the LORD and the other for the scapegoat,1 9he shall present the goat chosen by lot for the LORD and sacrifice it as a sin offering. 10But the goat chosen by lot as the scapegoat shall be presented alive before the LORD to make atonement by sending it into the wilderness as the scapegoat.