Does the Devil Really Exist?

Satan. The Devil. The Adversary. These are but a few of the names that describe that powerful spiritual being who fell from heaven and opposes God. Many people don’t believe he exists. Still others look at the Bible and point out how Satan is such an infrequent player in the Old Testament and a dominate player the New Testament. They use this observation as proof of the evolution of the idea of Satan. So, is he real or just a convenient fabrication of Christianity to keep people in line? If he is real, what kind of influence does he have? Should we be afraid?