Ezekiel 43:19

16 And the altar hearth shall be twelve [cubits] long by twelve broad, square in the four sides thereof.

17 And the ledge shall be fourteen [cubits] long by fourteen broad in the four sides thereof; and the border about it shall be half a cubit; and the bottom thereof shall be a cubit round about; and the steps thereof shall look toward the east.

18 And he said unto me, Son of man, thus saith the Lord Jehovah: These are the ordinances of the altar in the day when they shall make it, to offer burnt-offerings thereon, and to sprinkle blood thereon.

19 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.

20 And thou shalt take of the blood thereof, and put it on the four horns of it, and on the four corners of the ledge, and upon the border round about: thus shalt thou cleanse it and make atonement for it.

21 Thou shalt also take the bullock of the sin-offering, and it shall be burnt in the appointed place of the house, without the sanctuary.

22 And on the second day thou shalt offer a he-goat without blemish for a sin-offering; and they shall cleanse the altar, as they did cleanse it with the bullock.