Ezekiel 43:18-20

New Revised Standard Version, Anglicised Catholic Edition

¹⁸ Then he said to me: Mortal, thus says the Lord God: These are the ordinances for the altar: On the day when it is erected for offering burnt-offerings upon it and for dashing blood against it, ¹⁹ you shall give to the levitical priests of the family of Zadok, who draw near to me to minister to me, says the Lord God, a bull for a sin-offering. 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 round; thus you shall purify it and make atonement for it.