Matthew Poole and continuators on Lamentations 2:17

17 The LORD hath done that which he had devised: he hath fulfilled his word that he had commanded in the dayes of old: he hath thrown down and hath not pitied: and he hath caused thine enemy to rejoyce over thee, he hath set up the horn of thine adversaries .

God hath not surprized us by these Providences, he gave us notice what he would do, and hath done no more than what he threatned long since, Lev. 26.16. &c. Deut. 28.15. &c. It is true he hath severely punished us, so as in his dispensation there appear no prints of pity, he hath set up our Enemies and hath made them to triumph over his people, but in all this he hath but justified his truth, and fulfilled his word.