'Strongholds' in the Bible

The Lord hath swallowed up all the dwellings of Jacob, and hath not spared; he hath thrown down in his wrath the strongholds of the daughter of Judah: he hath brought them down to the ground; he hath profaned the kingdom and the princes thereof.

The Lord is become as an enemy: he hath swallowed up Israel; he hath swallowed up all her palaces; he hath destroyed his strongholds, and hath multiplied in the daughter of Judah mourning and lamentation.