Ezekiel 40:17 in the King James Version
Then brought he me into the outward court, and, lo, there were chambers, and a pavement made for the court round about: thirty chambers were upon the pavement.
Context
16 There were closed windows to the side rooms, and to their posts within the gate all around, and likewise to the arches. Windows were around inward. Palm trees were on each post.
17 Then he brought me into the outer court. Behold, there were rooms and a pavement made for the court all around. Thirty rooms were on the pavement.
18 The pavement was by the side of the gates, corresponding to the length of the gates, even the lower pavement.