Ezekiel 43:20; Ezekiel 43:22; Ezekiel 43:23

20 And you shall take some of its blood and put it on the four horns of the altar and on the four corners of the ledge and upon the rim all around. Thus you shall purify the altar and make atonement for it.

22 And on the second day you shall offer a male goat without blemish for a sin offering; and the altar shall be purified, as it was purified with the bull.

23 When you have finished purifying it, you shall offer a bull from the herd without blemish and a ram from the flock without blemish.