How did ancient semites deal with demon possession? Once a person came under the influence of demons, generally an exorcism was the only remedy. Here are some strategies sorcerer-priests used to banish evil spirits including magical preparations using various objects, incantations, and various magical rituals.
The Book of Enoch is a non-canonical Jewish work attributed to Enoch, the great-grandfather of Noah. The book is thought to date to about 300 BC and includes a detailed account of the fall of the angels in its section, the Book of the Watchers.
When we look back over the course of history, there are many groups that claim to have held the correct view of Christianity.