Ezekiel 43:12-14 World English Bible (WEB)
12 This is the law of the house: on the top of the mountain the whole limit around it shall be most holy. Behold, this is the law of the house. 13 These are the measurements of the altar by cubits (the cubit[a] is a cubit and a hand width): the bottom shall be a cubit, and the width a cubit, and its border around its edge a span;[b] and this shall be the base of the altar. 14 From the bottom on the ground to the lower ledge shall be two cubits, and the width one cubit; and from the lesser ledge to the greater ledge shall be four cubits, and the width a cubit.