'Suburbs' in the Bible

“The remaining [strip of] 5,000 cubits in width and 25,000 in length shall be for the city’s common (secular) use, for a place in which to live and for open country. The city shall be in the midst of it.

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