1 Enoch in the context of "Apocalyptic literature"

The Book of Giants is an apocryphal book which expands upon the Genesis narrative of the Hebrew Bible, in a similar manner to the Book of Enoch. Together with this latter work, The Book of Giants "stands as an attempt to explain how it was that wickedness had become so widespread and muscular before the flood; in so doing, it also supplies the reason why God was more than justified in sending that flood." The text's composition has been dated to before the 2nd century BC.

The Book of Giants is an antediluvian (pre-Flood) narrative that was received primarily in Manichaean literature and known at Turfan. However, the earliest known traditions for the book originate in Aramaic copies of a The Book of Giants among the Dead Sea Scrolls. References to the Giants mythology are found in: Genesis 6:1-4, the books of Enoch (Ethiopic, Slavonic, Hebrew, Greek), Jubilees, Genesis Apocryphon, 2 and 3 Baruch (Slavonic), the Damascus Document, and visions in Daniel 7:9-14. This book tells of the background and fate of these antediluvial giants and their fathers, the Watchers (called grigori in the Slavonic 2 Enoch), the sons of God or holy ones (Daniel 4:13, 17) who rebelled against heaven when—in violation of the strict "boundaries of creation"—they commingled, in their lust, with the "daughters of men."