And these are the measurements of the altar [of burnt offering] in cubits. The cubit is a royal cubit [the length of a forearm and a palm of the hand]; the bottom or gutter shall be a cubit deep and a cubit wide, with a rim or lip round about it of a span's breadth. And this shall be the height of the altar: From the bottom or gutter on the ground to the lower ledge or brim shall be two cubits, and the breadth one cubit; and from the lesser ledge to the greater ledge shall be four cubits, and the breadth one cubit. And the altar hearth shall be four cubits high, and from the altar hearth reaching upward there shall be four horns one cubit high. read more.
And the altar hearth shall be square -- "twelve cubits long, twelve broad, square in its four sides. And the ledge shall be fourteen cubits long and fourteen cubits broad on its four sides, and the border about it shall be half a cubit; and its bottom or gutter shall be a cubit deep and wide, and its ascent [not steps] shall face the east. And [the Lord] said to me, Son of man, thus says the Lord God: These are the regulations for the use of the altar in the day that it is erected, upon which to offer burnt offerings and to sprinkle blood against it: You shall give to the priests, the Levites who are of the offspring of Zadok, who are near to Me to minister to Me, says the Lord God, a young bull for a sin offering. And you shall take of its blood and put it on the four horns of [the altar of burnt offering] and on the four corners of the ledge and on the rim or border round about. Thus shall you cleanse and make atonement for [the altar]. You shall also take the bullock of the sin offering, and it shall be burned in the appointed place of the temple, outside the sacred enclosure. And on the second day you shall offer a male goat without blemish for a sin offering. Thus the altar shall be cleansed, as it was cleansed with the bullock. When you have finished cleansing it, you shall offer a young bull without blemish and a ram out of the flock without blemish. And you shall bring them near before the Lord, and the priests shall cast salt upon them and they shall offer them up for a burnt offering to the Lord. Seven days you shall prepare every day a goat for a sin offering; also a young bull and a ram out of the flock, without blemish, shall be prepared. For seven days shall they make atonement for the altar and purify it; so the priests shall consecrate, separate, and set it apart to receive offerings. And when these days have been accomplished, on the eighth day and from then on, the priests shall offer your burnt offerings upon the altar and your peace offerings; and I will accept you, says the Lord God.