Ezekiel 45:1-4

“Now when you divide the land by lot for inheritance, you shall offer an allotment to the Lord, a holy portion of the land; the length shall be a length of twenty-five thousand cubits, and the width shall be twenty thousand. It shall be holy within its entire surrounding boundary.

Out of this there shall be for the sanctuary a square encompassing five hundred by five hundred cubits, and fifty cubits for its open space round about.

From this area you shall measure a length of twenty-five thousand cubits and a width of ten thousand cubits; and in it shall be the sanctuary, the Most Holy Place.

It shall be the holy portion of the land; it shall be for the priests, the ministers of the sanctuary, who come near to serve the Lord, and it shall be a place for their houses and a holy place for the sanctuary.