Ezekiel 40:17-19

¹⁷Then he brought me into the outer court; and behold, there were chambers and a pavement, round about the court; thirty chambers fronted on the pavement. ¹⁸And the pavement ran along the side of the gates, corresponding to the length of the gates; this was the lower pavement. ¹⁹Then he measured the distance from the inner front of the lower gate to the outer front of the inner court, a hundred cubits. Then he went before me to the north,