Charles Ellicott Commentary Lamentations 2:5

"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 he hath multiplied in the daughter of Judah mourning and lamentation." — Lamentations 2:5 (ASV)

Her palaces: ... his strong holds ... —The change of gender is remarkable, probably rising from the fact that the writer thought of the “palaces” in connection with the “daughters of Zion,” and of the “strong holds” in connection with the land or people. A like combination is found in Hosea 8:14.

Mourning and lamentation. —The two Hebrew nouns are formed from the same root, and have an assonance like the sorrow and sighing of Isaiah 35:10.