'Ruin' in the Bible

Why are we sitting still [the people wonder]?Assemble yourselves, and let us enter the fortified citiesAnd let us die there,For the Lord our God has decreed our ruinAnd given us bitter and poisonous water to drink,Because we have sinned against the Lord.

The sound of an outcry [comes] from Babylon,And [the sound] of great destruction from the land of the Chaldeans!