Leviticus 16:1-10
The Day of Atonement
16 The Lord spoke to Moses after the death of the two sons of Aaron, when they drew near before the Lord and died. 2 The Lord said to Moses:
Tell your brother Aaron not to come just at any time into the sanctuary inside the curtain before the mercy-seat[a] that is upon the ark, or he will die; for I appear in the cloud upon the mercy-seat.[b] 3 Thus shall Aaron come into the holy place: with a young bull for a sin-offering and a ram for a burnt-offering. 4 He shall put on the holy linen tunic, and shall have the linen undergarments next to his body, fasten the linen sash, and wear the linen turban; these are the holy vestments. He shall bathe his body in water, and then put them on. 5 He shall take from the congregation of the people of Israel two male goats for a sin-offering, and one ram for a burnt-offering.
6 Aaron shall offer the bull as a sin-offering for himself, and shall make atonement for himself and for his house. 7 He shall take the two goats and set them before the Lord at the entrance of the tent of meeting; 8 and Aaron shall cast lots on the two goats, one lot for the Lord and the other lot for Azazel.[c] 9 Aaron shall present the goat on which the lot fell for the Lord, and offer it as a sin-offering; 10 but the goat on which the lot fell for Azazel[d] shall be presented alive before the Lord to make atonement over it, so that it may be sent away into the wilderness to Azazel.[e]
Leviticus 16:15-16
15 He shall slaughter the goat of the sin-offering that is for the people and bring its blood inside the curtain, and do with its blood as he did with the blood of the bull, sprinkling it upon the mercy-seat[a] and before the mercy-seat.[b] 16 Thus he shall make atonement for the sanctuary, because of the uncleannesses of the people of Israel, and because of their transgressions, all their sins; and so he shall do for the tent of meeting, which remains with them in the midst of their uncleannesses.
Leviticus 16:20-22
20 When he has finished atoning for the holy place and the tent of meeting and the altar, he shall present the live goat. 21 Then Aaron shall lay both his hands on the head of the live goat, and confess over it all the iniquities of the people of Israel, and all their transgressions, all their sins, putting them on the head of the goat, and sending it away into the wilderness by means of someone designated for the task.[a] 22 The goat shall bear on itself all their iniquities to a barren region; and the goat shall be set free in the wilderness.
Leviticus 16:29-30
29 This shall be a statute to you for ever: In the seventh month, on the tenth day of the month, you shall deny yourselves,[a] and shall do no work, neither the citizen nor the alien who resides among you. 30 For on this day atonement shall be made for you, to cleanse you; from all your sins you shall be clean before the Lord.