Ezekiel 43:13-17

13And these are the measures of the altar by cubits: (the cubit is a cubit and an handbreadth:) the bottom shall be a cubit, and the breadth a cubit, and the border thereof by the edge thereof round about a span: and this shall be the base of the altar.

14And from the bottom upon the ground to the lower settle shall be two cubits, and the breadth one cubit; and from the lesser settle to the greater settle shall be four cubits, and the breadth a cubit.

15And the upper altar shall be four cubits; and from the altar hearth and upward there shall be four horns.

16And the altar hearth shall be twelve cubits long by twelve broad, square in the four sides thereof.

17And the settle shall be fourteen cubits long by fourteen broad in the four sides thereof; and the border about it shall be half a cubit; and the bottom thereof shall be a cubit about; and the steps thereof shall look toward the east.