The Skeptic's Dictionary: Satan

Satan:

Satan is the adversary of God. Thus, Satan is evil personified. Many followers of the Bible consider Satan to be a real being, a spirit created by God. Satan and the other spirits who followed him rebelled against God. They were allegedly cast out from Heaven by their Creator. Theologians might speculate as to why the Almighty did not annihilate the "fallen angels," as He is said to have done to his other creations when they failed to be righteous (save Noah and his family, of course). Satan was allowed to set up his own kingdom in Hell and to send out devils to prowl the earth for converts. The demonic world seems to have been allowed to exist for one purpose only: to tempt humans to turn away from God. Why God would allow Satan to do this is explained in the Book of Job, where Satan is described as an angel who works in cahoots with God. When Job asks why God let Satan torment him the answer is blunt and final: Hath thou an arm like the Lord? The story of Job is interpreted in many different ways by theologians but my interpretation is that nobody knows why God lets Satan live and torment us. God is God and can do whatever He wants. Ours is not to question why, ours is but to do and die. (more)