Fallen angels are angels who were expelled from Heaven. The literal term "fallen angel" does not appear in any Abrahamic religious texts, but is used to describe angels cast out of heaven. Such angels are often described as corrupting humanity by teaching forbidden knowledge or by tempting them into sin. Common motifs for their expulsion are lust, pride, envy, or an attempt to usurp divinity.
The earliest appearance of the concept of fallen angels may be found in Canaanite beliefs about the bənē hāʾĔlōhīm ('sons of God'), expelled from the divine court. Hêlêl ben Šāḥar is thrown down from heaven for claiming equality with ʻElyōn. Such stories were later collected in the Hebrew Bible (Christian Old Testament) and appear in pseudepigraphic Jewish apocalyptic literature. The concept of fallen angels derives from the assumption that the "sons of God" (בני האלוהים) mentioned in Genesis 6:1–4 or the Book of Enoch are angels. In the period immediately preceding the composition of the New Testament, some groups of Second Temple Judaism identified these "sons of God" as fallen angels.
