Ezekiel 43:25-27

43:25 “For seven days you will provide every day a goat for a sin offering; a young bull and a ram from the flock, both without blemish, will be provided. 43:26 For seven days they will make atonement for the altar and cleanse it, so they will consecrate it. 43:27 When the prescribed period is over, on the eighth day and thereafter the priests will offer up on the altar your burnt offerings and your peace offerings; I will accept you, declares the sovereign Lord.”