Now when these things were done, the princes came near to me, saying, “The people of Israel, the priests, and the Levites, have not separated themselves from the peoples of the lands, following their abominations, even those of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites.
Ezra 9:1 Now when these things were done, the princes came near to me, saying, “The people of Israel, the priests, and the Levites, have not separated themselves from the peoples of the lands, following their abominations, even those of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites.
Ezra 9:2 For they have taken of their daughters for themselves and for their sons, so that the holy offspring have mixed themselves with the peoples of the lands. Yes, the hand of the princes and rulers has been chief in this trespass.”
Ezra 9:3 When I heard this thing, I tore my garment and my robe, and pulled the hair out of my head and of my beard, and sat down confounded.
The verse centers on "things", "done", "princes", "came", "near", "saying", "people", and "israel". It is saying that the verse draws attention to "things" and "done", so its meaning should be read from those terms before moving to application.
The next verse adds "For they have taken of their daughters...", so "things" and "done" should be read forward into that movement. In Ezra context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "things" and "done" with trust shaped by these words, not by a vague optimism outside the passage.