Ezekiel 43:20

Next Moses slaughtered it and took the blood and with his finger put some of it around on the horns of the altar and purified the altar. Then he poured out the rest of the blood at the base of the altar and set it apart as holy, to make atonement for it.

“Then he shall go out to the altar that is before Yahweh and make atonement for it. And he shall take some of the blood of the bull and of the blood of the goat, and put it on the horns of the altar on all sides.

“With his finger he shall sprinkle some of the blood on it seven times and cleanse it and set it apart as holy from the uncleanness of the sons of Israel.

“And from the base on the ground to the lower ledge shall be two cubits and the width one cubit; and from the smaller ledge to the larger ledge shall be four cubits and the width one cubit.

‘Now on the second day you shall bring near a male goat without blemish for a sin offering, and they shall purify the altar as they purified it with the bull.

“The priest shall take some of the blood from the sin offering and put it on the door posts of the house, on the four corners of the ledge of the altar, and on the posts of the gate of the inner court.