Ezekiel 40:17-19

17 Then he brought me into the outer courtyard. There I saw rooms and paved mosaic flooring made for the courtyard all around its perimeter, and thirty rooms facing the flooring.
18 The flooring was alongside the gates and corresponded to the length of the gates [from outside to inside], this lower flooring.
19 He measured at 175 feet the distance from inside this lower gate that faced east to the outside of the inner courtyard, and he did the same for the gate that faced north.
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.