What You Should Know about Islam's Holy Book How is it like the Bible? How is it different? Why is it important? Muslims believe the Koran exists as a literal book in heaven and was dictated to the prophet Muhammad by the angel Gabriel. It is only the length of the New Testament, yet a fifth of the world claims it is the complete revelation of God. To most Americans, though, the Koran remains a mystery. Did you know that the Koran teaches the virgin birth and miracle-filled, prophetic ministry of Jesus? Claims to fully embrace his teachings? Reveres Abraham, Moses, Jonah, and other...