'Walls' in the Bible

but the angel of the LORD stood on a narrow path that crossed the vineyards. It had walls on both sides of the path.

“Command the Israelites to give to the Levites cities to live in from the inheritance of their possession; and you shall give to the Levites pasture lands around the cities.

The grazing lands that you are to reserve for use by the descendants of Levi are to extend 1,000 cubits from the walls of the town.

But if ever he goes outside the walls of the safe town where he had gone in flight,

And the giver of punishment, meeting him outside the walls of the town, puts him to death, he will not be responsible for his blood: