Enoch's Watchers and the Nephilim: Canon, Controversy, and the Ancient Astronaut Debate

To the point

The Book of Enoch recounts about 200 Watchers descending to Mount Hermon, taking human wives, and fathering the Nephilim whose forbidden knowledge leads to moral decay and chaos, a story some readers interpret as literal alien contact and others as symbolic moral teaching, and while it was excluded from the canon for monotheistic concerns, its influence persists in Jewish mysticism and early Christian thought.