Leviticus 16:12

10But the goat on which the lot fell for the scapegoat shall be presented alive before the LORD, to make atonement for him, to send him away as the scapegoat into the wilderness.

11“Aaron shall present the bull of the sin offering, which is for himself, and shall make atonement for himself and for his house, and shall kill the bull of the sin offering which is for himself.

12He shall take a censer full of coals of fire from off the altar before the LORD, and two handfuls of sweet incense beaten small, and bring it within the veil.

13He shall put the incense on the fire before the LORD, that the cloud of the incense may cover the mercy seat that is on the covenant, so that he will not die.

14He shall take some of the blood of the bull, and sprinkle it with his finger on the mercy seat on the east; and before the mercy seat he shall sprinkle some of the blood with his finger seven times.