Ezekiel 48:16-17

16These shall be its measurements: the north side 4,500 cubits, the south side 14,500 cubits, the east side 4,500 cubits, and the west side 4,500 cubits.

17The city shall have 2open spaces: on the north 250 cubits, on the south 250 cubits, on the east 250 cubits, and on the west 250 cubits.