Footnotes:

1. 7 Practiced unnatural vice: literally, “went after alien flesh.” This example derives from Gn 19:1–25, especially 4–11, when the townsmen of Sodom violated both hospitality and morality by demanding that Lot’s two visitors (really messengers of Yahweh) be handed over to them so that they could abuse them sexually. Unnatural vice: this refers to the desire for intimacies by human beings with angels (the reverse of the example in Jude 6). Sodom (whence “sodomy”) and Gomorrah became proverbial as object lessons for God’s punishment on sin (Is 1:9; Jer 50:40; Am 4:11; Mt 10:15; 2 Pt 2:6).
2. 8 Dreamers: the writer returns to the false teachers of Jude 4, applying charges from the three examples in Jude 5, 6, 7. This may apply to claims they make for revelations they have received by night (to the author, hallucinations). Defile the flesh: this may mean bodily pollutions from the erotic dreams of sexual license (Jude 7). Lordship…glorious beings: these may reflect the Lord (Jude 5; Jesus, Jude 4) whom they spurn and the angels (Jude 6; cf. note on 2 Pt 2:10, here, as there, literally, “glories”).