Ezekiel 43:25 (KJV)

And thou shalt take of the blood thereof, and put it on the four horns of it, and on the four corners of the settle, and upon the border round about: thus shalt thou cleanse and purge it.

Thou shalt take the bullock also of the sin offering, and he shall burn it in the appointed place of the house, without the sanctuary.

And on the second day thou shalt offer a kid of the goats without blemish for a sin offering; and they shall cleanse the altar, as they did cleanse it with the bullock.

When thou hast made an end of cleansing it, thou shalt offer a young bullock without blemish, and a ram out of the flock without blemish.

And thou shalt offer them before the LORD, and the priests shall cast salt upon them, and they shall offer them up for a burnt offering unto the LORD.

Seven days shall they purge the altar and purify it; and they shall consecrate themselves.

And when these days are expired, it shall be, that upon the eighth day, and so forward, the priests shall make your burnt offerings upon the altar, and your peace offerings; and I will accept you, saith the Lord GOD.