Jude 1:5-6

Now I want to remind you, although you are fully informed once for all, that the Lord, after saving a people out of the land of Egypt, subsequently destroyed those who did not believe [who refused to trust and obey and rely on Him]. [Num 14:27-37] And angels who did not keep their own designated place of power, but abandoned their proper dwelling place, [these] He has kept in eternal chains under [the thick gloom of utter] darkness for the judgment of the great day