'Wall' in the Bible

But the angel of the LORD stood in a path of the vineyards, a wall being on this side, and a wall on that side.

And when the ass saw the angel of the LORD, she thrust herself unto the wall, and crushed Balaam's foot against the wall: and he smote her again.

And the suburbs of the cities, which ye shall give unto the Levites, shall reach from the wall of the city and outward a thousand cubits round about.