Ezekiel 48:16-20

And these shall be its measurements: the north side, 4,500 cubits, the south side 4,500 cubits, the east side 4,500 cubits, and the west side, 4,500 cubits.

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

The remainder of the length alongside the holy allotment shall be ten thousand cubits toward the east and ten thousand toward the west; and it shall be alongside the holy allotment. And its produce shall be food for the workers of the city.

And the workers of the city, out of all the tribes of Israel, shall cultivate it.

The whole allotment shall be twenty-five thousand by twenty-five thousand cubits; you shall set apart the holy allotment, a square, with the property of the city. Portion for the Prince