Ezekiel 43:13-17

13“These are the measurements of the altar by cubits (the cubit being a cubit and a handbreadth): its base shall be one cubit high and one cubit broad, with a rim of one span around its edge. And this shall be the height of the altar: 14from the base on the ground to the lower ledge, two cubits, with a breadth of one cubit; and from the smaller ledge to the larger ledge, four cubits, with a breadth of one cubit; 15and the altar hearth, four cubits; and from the altar hearth projecting upward, four horns. 16The altar hearth shall be square, twelve cubits long by twelve broad. 17The ledge also shall be square, fourteen cubits long by fourteen broad, with a rim around it half a cubit broad, and its base one cubit all around. The steps of the altar shall face east.”