Ezekiel 43:25-27

251For seven days you shall prepare a goat as a sin offering daily; also a 2bull and a ram from the flock, both without blemish, shall be prepared.

26For seven days they shall make atonement for the altar and purify it; so shall they 3consecrate it.

27When they have completed the days, it shall be that on the 4eighth day and onward, the priests shall 5offer your burnt offerings on the altar, and your 6peace offerings; and I will 7accept you,’ declares the Lord God.”