You shall take some of the blood of the bull and put it on the horns of the altar with your finger, and pour all the blood beside the base of the altar.
Then he shall kill the lamb in the place where he kills the sin offering and the burnt offering, in a holy place; for as the sin offering is the priest’s, so is the trespass offering. It is most holy.
And he shall lay his hand on the head of his offering, and kill it at the door of the tabernacle of meeting; and Aaron’s sons, the priests, shall sprinkle the blood all around on the altar.
and Moses killed it. Then he took the blood, and put some on the horns of the altar all around with his finger, and purified the altar. And he poured the blood at the base of the altar, and consecrated it, to make atonement for it.