'Wall' in the Bible

Devised hath Jehovah to destroy the wall of the daughter of Zion, He hath stretched out a line, He hath not turned His hand from destroying, And He causeth bulwark and wall to mourn, Together -- they have been weak.

Cried hath their heart unto the Lord; O wall of the daughter of Zion, Cause to go down as a stream tears daily and nightly, Give not rest to thyself, Let not the daughter of thine eye stand still.