Yechezkel 43:11-17 OJB

11 And if they be ashamed of all that they have done, make known to them the tzurah (form, fashion) of the Beis [HaMikdash], and the techunah (arrangement) thereof, and the exits thereof, and the entrances thereof, and all the tzurot thereof, and all the chukkot thereof, and all the tzurot thereof, and all the torot thereof; and write it before their eyes, that they may be shomer over the whole tzurah thereof, and all the chukkot thereof, and do them.

12 This is the torat HaBeis [HaMikdash]: upon the rosh hahar the entire boundary thereof round about shall be kodesh kadashim. Hinei, this is the torat HaBeis [HaMikdash].

13 And these are the middot HaMizbe'ach (measurements of the Mizbe'ach) in cubits. The cubit is a cubit and a handbreadth; even the base shall be a cubit (in height), and the width a cubit, and the moulding thereof by the edge thereof round about shall be a span; and this shall be for the gav (height, back) of the Mizbe'ach.

14 And from the base upon ha'aretz even to the lower enclosure shall be two cubits, and the width one cubit; and from the lesser enclosure even to the greater enclosure shall be four cubits, and the width one cubit.

15 So the ariel (surface of the altar, hearth) shall be four cubits; and from the hearth and upward shall be four keranot (horns).

16 And the hearth shall be square, twelve cubits long, by twelve wide.

17 And the enclosure shall be square, fourteen cubits long and fourteen wide; and the moulding about it shall be half a cubit; and the base thereof shall be a cubit about; and its ma'alot (steps, stairs) shall look toward the east.