Ezekiel 45:2

In this sacred territory, more particularly, in the half of it assigned to the priests (Ezekiel 45:3), shall the sanctuary be situated, a square of 500, surrounded by a free space of 50 cubits on all sides. The 500 are certainly cubits, cf. Ezekiel 42:20.

the suburbs thereof What the "suburbs" are appears from Numbers 35:4; it is an open space around the walls of an enclosure, a city or building, held to belong to the building or city, but not occupied by it. It is the liberties of a city or the precincts of an edifice, Ezekiel 48:15; Ezekiel 48:17.