Ezekiel 43:12-21
English Standard Version
13"These are the measurements of the altar by cubits (the cubit being a cubit and a handbreadth): its base shall be one cubit high and one cubit broad, with a rim of one span around its edge. And this shall be the height of the altar:
14from the base on the ground to the lower ledge, two cubits, with a breadth of one cubit; and from the smaller ledge to the larger ledge, four cubits, with a breadth of one cubit;
15and the altar hearth, four cubits; and from the altar hearth projecting upward, four horns.
16The altar hearth shall be square, twelve cubits long by twelve broad.
17The ledge also shall be square, fourteen cubits long by fourteen broad, with a rim around it half a cubit broad, and its base one cubit all around. The steps of the altar shall face east."
18And he said to me, "Son of man, 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 throwing blood against it,
19you shall give to the Levitical priests of the family of Zadok, who draw near to me to minister to me, declares the Lord God, a bull from the herd for a sin offering.
20And 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 around. Thus you shall purify the altar and make atonement for it.
21You shall also take the bull of the sin offering, and it shall be burned in the appointed place belonging to the temple, outside the sacred area.