¹⁴ From the gutter on the ground up to the lower ledge that goes around the altar it is two cubits high, and the ledge is a cubit wide.^[a] From this lower ledge to the upper ledge that goes around the altar it is four cubits high, and that ledge is also a cubit wide.^{[b] 15} Above that, the altar hearth^(A) is four cubits high, and four horns^(B) project upward from the hearth. ¹⁶ The altar hearth is square, twelve cubits^[c] long and twelve cubits wide.^(C)