From this distance we may loose the scope of context a contemporary of Jeremiah may have sensed. One thing we now we might miss is just how impossible this all may have seemed. All of the eyes of the other nations looking on this would have known how unbreachable the defenses of Jerusalem would have been and yet they were utterly destroyed; and if Jerusalem then surely theirs. It was known to them as well that Jerusalem was the Lord's and that the Lord had not let iniquity go unpunished even/especially amongst His own. Predicted now is the fall of great Babylon, an even greater impossibility. Surely there would be the sense that if this is to happen that all of this can only be of the Lord.
The other thing we might be missing as to the real time context is just how complete and desperate the destruction is all around Jeremiah. What he is seeing at ground zero is simply unfathomable. He speaks of the destruction of Sodom to have been merciful compared to this.
2012 - pBiblx2 Field Wise Bible System Version 2.0.9d - GPL3