Leviticus 16:3-13

³In this manner shall Aaron come into the sanctuary: with a young bullock for a sin-offering, and a ram for a burnt-offering.

⁴A holy linen vest shall he put on, and linen trousers shall be upon his flesh, and he shall be girded with a linen girdle, and with the linen mitre shall he be attired: these are holy garments; and he shall bathe his flesh in water, and put them on.

⁵And of the assembly of the children of Israel shall he take two bucks of the goats for a sin-offering, and one ram for a burnt-offering.

⁶And Aaron shall present the bullock of the sin-offering, which is for himself, and make atonement for himself, and for his house.

⁷And he shall take the two goats, and set them before Jehovah, before the entrance of the tent of meeting.

⁸And Aaron shall cast lots upon the two goats: one lot for Jehovah, and the other lot for Azazel.

⁹And Aaron shall present the goat upon which the lot fell for Jehovah, and offer it as a sin-offering.

¹⁰And the goat upon which the lot fell for Azazel shall be set alive before Jehovah, to make atonement with it, to send it away as Azazel into the wilderness.

¹¹And Aaron shall present the bullock of the sin-offering, which is for himself, and shall make atonement for himself and for his house, and shall slaughter the bullock of the sin-offering which is for himself.

¹²And he shall take the censer full of burning coals of fire from off the altar before Jehovah, and both his hands full of fragrant incense beaten small, and bring it inside the veil.

¹³And he shall put the incense upon the fire before Jehovah, that the cloud of the incense may cover the mercy-seat which is upon the testimony, that he die not.