I've thought of this topic in the past, although was reminded of it when coming across this story in the news:
329 years later, last Salem 'witch' who wasn't is pardoned | AP News
One of the stranger, more inexplicable atrocities in our history. I never could understand why Christians would have even believed in the existence of witches. If they believe in Christianity, wouldn't that mean that they would see other religions - including the power of witchcraft and magic - as false?
Wouldn't their fear of witches (or anything they see as the "occult") indicate that they believe in that kind of power? If so, then is that an acknowledgement that the God they believe in is powerless to protect them from such a power, thus necessitating them taking action on their own?