The man said, "Here is the size of the altar. The standard measurement I am using is 21 inches. The base of the altar is 21 inches high. The base has a ledge that is 21 inches wide. It also has a rim that is nine inches wide around the edge. Here is how high the altar is.
References for Ezekiel 43:13
The lower part is three and a half feet high. It has a ledge that is 21 inches wide. The middle part is seven feet high. It has a ledge that is 21 inches wide.
"The top part is where the sacrifices are burned. It is seven feet high. A horn sticks out from each of its upper four corners.
The top part of the altar is square. It is 21 feet long and 21 feet wide.
The middle part is also square. It is 24 and a half feet long. It is 24 and a half feet wide. Its rim is ten and a half inches wide. The base of the altar is 21 inches high all the way around. The steps leading up to the top of the altar face east."
Then the man said to me, "Son of man, the LORD and King speaks. He says, 'Here are the rules for the altar when it is built. Follow them when you sacrifice burnt offerings and sprinkle blood on it.
Give a young bull to the priests as a sin offering. They are Levites from the family of Zadok. They approach me to serve me,' announces the LORD and King.
'Get some of the bull's blood. Put it on the four horns. Also put it on the four corners of the middle part of the altar and all around the rim. That will make the altar pure and clean.
Use the bull for the sin offering. Burn it in the proper place outside the temple.
" 'On the second day offer a male goat. It must not have any flaws. It is a sin offering to make the altar pure and clean. So do as you did with the bull.
When you finish making the altar pure, offer a young bull and a ram from the flock. They must not have any flaws.
Offer them to me. The priests must sprinkle salt on them. Then they must sacrifice them as a burnt offering to me.
" 'Provide a male goat each day for seven days. It is a sin offering. Also provide a young bull and a ram from the flock. They must not have any flaws.
For seven days the priests must make the altar pure and clean. That is how they will set it apart to me.
" 'From the eighth day on, the priests must bring your burnt offerings and friendship offerings. They must sacrifice them on the altar. Then I will accept you,' announces the LORD and King."