Ezekiel 43:16-18 Living Bible (TLB)
16 This top platform of the altar is 21 feet square. 17 The platform beneath it is 24½ feet square with a 10½-inch curb around the edges. The entire platform extends out from the top 21 inches on all sides. On the east side are steps to climb the altar.”
18 And he said to me:
“Son of dust, the Lord God says: These are the measurements of the altar to be made in the future, when it is erected for the burning of offerings and the sprinkling of blood upon it.