Ezekiel 43:16-18

New Revised Standard Version Catholic Edition

¹⁶ The altar hearth shall be square, twelve cubits long by twelve wide. ¹⁷ The ledge also shall be square, fourteen cubits long by fourteen wide, with a rim around it half a cubit wide, and its surrounding base, one cubit. Its steps shall face east.

¹⁸ Then he said to me: Mortal, thus says the Lord God: These are the ordinances for the altar: On the day when it is erected for offering burnt offerings upon it and for dashing blood against it,