Ezekiel 43:16-18 Complete Jewish Bible (CJB)
16 The hearth is a square twenty-one feet on each of its four sides. 17 The ledge measures a square twenty-four-and-a-half feet on each of its four sides; the molding around it ten-and-a-half inches [across]; and its base twenty-one inches [larger than the rest, all the way] around. Its steps face east.
18 He said to me, “Human being, Adonai Elohim says, ‘These are the regulations for the altar when the time comes to construct it, offer burnt offerings on it and splash the blood against it:
Ezekiel 43:16-18 New International Version (NIV)
16 The altar hearth is square, twelve cubits[a] long and twelve cubits wide. 17 The upper ledge also is square, fourteen cubits[b] long and fourteen cubits wide. All around the altar is a gutter of one cubit with a rim of half a cubit.[c] The steps of the altar face east.”
18 Then he said to me, “Son of man, this is what the Sovereign Lord says: These will be the regulations for sacrificing burnt offerings and splashing blood against the altar when it is built: