“And these are the measurements of the altar [of burnt offering] in cubits (the cubit being a [long] cubit [the length of a forearm] and a hand width): the base shall be a cubit [long] and a cubit wide, with its border on its edge all around it of a span [in width]. And this shall be the height of the base of the altar. From the base on the ground to the lower ledge shall be two cubits and the width one cubit; and from the smaller ledge to the larger ledge shall be four cubits and the width one cubit. The altar hearth shall be four cubits high, and from the altar hearth shall extend upwards four horns [one from each corner, each one cubit high]. Now the altar hearth shall be twelve cubits long by twelve wide, square in its four sides. The ledge shall be fourteen cubits long by fourteen wide on its four sides, and the border around it shall be half a cubit; and its base shall be a cubit all around, and its steps shall face the east.” [Ex 20:26]
And He [the LORD] said to me, “Son of man, thus says the Lord GOD, ‘These are the statutes and regulations for [the use of] the altar on the day that it is built, to offer burnt offerings on it and to sprinkle blood on it. You shall give to the priests, the Levites who are from the descendants of Zadok, who are close to Me to minister to Me,’ says the Lord GOD, ‘a young bull for a sin offering [as a memorial to Christ’s sacrifice]. And you shall take some 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 border all around; thus you shall cleanse it (from sin) and make atonement for it. You shall also take the bull for the sin offering, and it shall be burned in the appointed place of the temple, outside the sanctuary. [Heb 13:11]
‘On the second day you shall offer a male goat without blemish for a sin offering, and they shall cleanse the altar as they cleansed it with the bull. When you have finished cleansing it, you shall offer a young bull without blemish and a ram from the flock without blemish. You shall present them before the LORD, and the priests shall throw salt on them, and they shall offer them up as a burnt offering to the LORD. For seven days you shall prepare daily a goat for a sin offering; also a young bull and a ram from the flock, without blemish, shall be prepared. For seven days they shall make atonement for the altar and purify it; so the priests shall consecrate it [to receive offerings]. [Ex 29:37] When they have completed these days, on the eighth day and from then onward, the priests shall offer your burnt offerings on the altar, and your peace offerings; and I will accept you,’ says the Lord GOD.” [Rom 12:1; 1 Pet 2:5]