Jerusalem’s leaders are idolators, Judah is worse than a prostitute, and judgement is inevitable: Ezekiel 14–16
Jerusalem’s fall was to be inevitable, terrible, and deserved. Not even Noah, Job or Daniel would be able to save the city with their presence.
Even so, the exiles, whom Jeremiah had called good figs, were assured that they would understand why these things had happened once they met the few survivors from the final fall of Jerusalem:
Ezekiel 14:22-23 Yet there will be survivors, and they will come here to join you as exiles in Babylon. You will see with your own eyes how wicked they are, and then you will feel better about what I have done to Jerusalem. When you meet them and see their behavior, you will understand that these things are not being done to Israel without cause. I, the Sovereign Lord, have spoken!