'Wall' in the Bible

When the donkey saw the angel of the LORD, she squeezed herself so close to the wall that Balaam's foot was pressed to the wall. So he beat her again!

You are to measure from outside the wall of the town on the east side 2,000 cubits, on the south side 2,000 cubits, on the west side 2,000 cubits, and on the north side 2,000 cubits, with the town placed at the center. This reserved area is to serve as grazing land for their towns.