The LORD gave full vent to his wrath; he poured out his hot anger, and he kindled a fire in Zion that consumed its foundations.
He at length concludes that nothing was wanting to complete the extreme vengeance of God; for had the Jews been chastised in an ordinary way, they would have still extenuated their sins, as we know that they were not easily led to repentance.
The elegy in this chapter begins with a lamentation of the very sad and doleful change which the judgments of God had made in Jerusalem. The city that was formerly as gold, as the most fine gold, so rich and splendid, the perfection of beauty and the joy of the whole earth, has become dim, and is changed, has lost its lustre, lost its value...
Commenting on Lamentations 4:1-12
The Lord hath accomplished his fury,.... Which rose up in his mind, and which he purposed in himself to bring upon the sinful people of the Jews: he hath poured out his fierce anger; the vials of his wrath in great abundance, even all he meant to pour out upon them: and hath kindled a fire in Zion, and it hath devoured the foundations thereof...