'Fenced Cities' in the Bible

And it hath consumed thy harvest and thy bread, They consume thy sons, and thy daughters, It consumeth thy flock, and thy herd, It consumeth thy vine, and thy fig-tree, It maketh poor thy fenced cities, In which thou art trusting -- by the sword.

Wherefore are we sitting still? Be gathered, and we go in to the fenced cities, And we are silent there, For Jehovah our God hath made us silent, Yea, He causeth us to drink water of gall, For we have sinned against Jehovah.