Jude 1:5-7

5But I would put you in remembrance, you who once knew all things, that the Lord, having saved a people out of [the] land of Egypt, in the second place destroyed those who had not believed.

6And angels who had not kept their own original state, but had abandoned their own dwelling, he keeps in eternal chains under gloomy darkness, to [the] judgment of [the] great day;

7as Sodom and Gomorrha, and the cities around them, committing greedily fornication, in like manner with them, and going after other flesh, lie there as an example, undergoing the judgment of eternal fire.