Ezekiel 48:9-10

9The allotment [of land] that you shall set apart and offer to the Lord shall be 25,000 cubits in length and 10,000 in width.

10The holy allotment shall be for these, namely for the priests, toward the north 25,000 cubits in length, and toward the west 10,000 in width, and toward the east 10,000 in width, and toward the south 25,000 in length; and the sanctuary of the Lord shall be in the midst of it.