[11] And Aaron shall bring the bullock of the sin offering, which is for himself, and shall make an atonement for himself, and for his house, and shall kill the bullock of the sin offering which is for himself: [12] And he shall take a censer full coals of fire from off the altar before the LORD, and his hands full of sweet incense beaten small, and bring it within the vail: [13] And he shall put the incense upon the fire before the LORD, that the cloud of the incense may cover the mercy seat that is upon the testimony, that he die