Leviticus 16:11-14

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.

14And he shall take of the blood of the bullock, and sprinkle with his finger upon the front of the mercy-seat eastward; and before the mercy-seat shall he sprinkle of the blood seven times with his finger.