James Thacher 
Demonology, Ghosts and Apparitions [EPUB ebook] 

A belief in the entity of witchcraft and sorcery may boast of a high degree of antiquity. In both the Old and New Testament, we observe numerous tragical events, bearing the semblance of diabolical agency. A prominent instance is found in the witch of Endor, who is said to have been deeply versed in the art of deception, and notorious in her day for skill in practical astrology. It is the opinion of some divines, that to beguile Saul, she raised a demon, counterfeiting Samuel; but it seems difficult to decide in what precise manner she effected her purpose of imposing upon her credulous employer. The sorcery and witchcraft, prohibited under the Jewish dispensation, is supposed by high authority to be a very different species of crime from that which was so abhorrent in the days of our ancestors; the former might have come under the description of idolatry, or of the heathen mythology. ‘The ancients believed that there were good and evil demons, which had influence over the minds of men, and that these beings carried on an intercourse between men and gods, conveying the addresses of men to the gods, and divine benefits to men. Hence, demons became the objects of worship. It was supposed, also, that human spirits, after their departure from the body, became demons, and that the souls of virtuous men, if highly purified, were exalted from demons into gods.’