'Fenced Cities' in the Bible

Declare ye in Judah And in Jerusalem, let it be heard, And say, Blow ye a horn in the land, - Cry, with frill voice And say, Gather yourselves together, And let us enter the defenced cities.

Then shall it eat thy harvest and thy bread which thy sons and thy daughters should eat, - It shall eat thy flock and thy herd, It shall eat thy vine and thy fig-tree, - It shall destroy thy defenced cities wherein thou, art trusting, with the sword.

Why are, well sitting still? Gather yourselves together and let us enter the defenced cities And let us be silent there, - For, Yahweh our God, hath put us to silence And made us drink poisoned water, Because we have sinned against Yahweh.