Ezekiel 41:6
6 And the side chambers were in bthree stories, one over another, thirty in each story. There were offsets1 all around the wall of the temple to serve as supports for the side chambers, so that they should not be supported by the wall of the temple.
Ezekiel 45:5
5 Another section, 25,000 cubits long and 10,000 cubits broad, shall be zfor the Levites who minister at the temple, as their possession for cities to live in.1