Ezekiel 43:19, 27

Thou shalt give to the priests the Levites that are of the seed of Zadok, who are near unto me, to minister unto me, saith the Lord Jehovah, a young bullock for a sin-offering.

And when they have accomplished the days, it shall be that upon the eighth day, and forward, the priests shall make your burnt-offerings upon the altar, and your peace-offerings; and I will accept you, saith the Lord Jehovah.