Ezekiel 42:15-20

15Now when he had finished measuring the interior of the temple area, he led me out by the gate that faced east, and measured the temple area all around.

16He measured the east side with the measuring reed, 500 cubits by the measuring reed all around.

17He measured the north side, 500 cubits by the measuring reed all around.

18He measured the south side, 500 cubits by the measuring reed.

19Then he turned to the west side and measured, 500 cubits by the measuring reed.

20He measured it on the four sides. It had a wall around it, 500 cubits long and 500 cubits broad, to make a separation between the holy and the common.