Ezekiel 43:16-18 The Message (MSG)
16-17 “The top of the altar, the hearth, is square, twenty-one by twenty-one feet. The upper ledge is also square, twenty-four and a half feet on each side, with a ten-and-a-half-inch lip and a twenty-one-inch-wide gutter all the way around.
“The steps of the altar ascend from the east.”
18 Then the man said to me, “Son of man, God, the Master, says: ‘These are the ordinances for conduct at the altar when it is built, for sacrificing burnt offerings and sprinkling blood on it.