Exodus 29:36,37
And you shall offer every day a bullock for a sin offering for atonement: and you shall cleanse the altar, when you have made an atonement for it, and you shall anoint it, to sanctify it.
Torrey's Topical Textbook—AKJV

Leviticus 16:18,19
And he shall go out to the altar that is before the LORD, and make an atonement for it; and shall take of the blood of the bullock, and of the blood of the goat, and put it on the horns of the altar round about.
Torrey's Topical Textbook—AKJV