Throughout history there have always been folks who have doubted the existence of the supernatural, whether that be God, gods, demons, or satan. The problem is that to do so is to claim that one is smarter and better than all the people currently on the planet as well as all those throughout history who have reported supernatural experiences. And this includes people of all faiths, not just Christianity as the majority (if not all) religions acknowledge some form of the supernatural. Granted, they may differ as to how the supernatural interacts with the physical world, but it is there.
Yet in spite of this, the endless march of history has created a culture in which for the first time a large portion of the population no longer recognizes the existence of the supernatural. Or, if they do, it is simply a footnote buried beneath the weight of materialism.
Followers of Jesus are no exception to this modern tread. Vast portions of Christianity have removed the supernatural aspects of the Bible, claiming that the miracles recorded in the Scriptures were either literary devices designed to booster the authors message or simply the delusions of folks living in primitive times. (as a side note, this trend away from the supernatural within Christianity has always baffled me as belief in “God” is by definition a belief in a supernatural being…..)
One of the difficulties in accepting the supernatural as depiction within the Bible is the existences of evil, or, more specifically, the existences of Satan and demons. This, I feel, IS the biggest challenge for folks in accepting the supernatural as they do not want to acknowledge that there is anything out there fighting against them. It is a lot more comfortable and easier to believe in a “good supernatural being” than it is to believe in a “bad supernatural being”. This is not to say that there has to be a “bad supernatural being” in order for there to be a “good supernatural being.” The Scriptures tell us that God (i.e. the “good supernatural being”) existed before Satan (i.e. the “bad supernatural being”) and will exist long after Satan and his followers are destroyed (Gen 1; Revelation).
The problem with denying the existences of Satan and his followers is that it leaves parts of human experience inexplicable. As Dr. Roger Olson recently said, “much evil in the world, in my opinion, cannot be explained solely by means of human sin.”