'Wall' in the Bible

Then the angel of Yahweh stood in a narrow path between the vineyards, a wall being on this side, and a wall on that side.

The donkey saw the angel of Yahweh, and she thrust herself to the wall, and crushed Balaam's foot against the wall: and he struck her again.

"The suburbs of the cities, which you shall give to the Levites, shall be from the wall of the city and outward one thousand cubits around it.