In consonance with the view that human religions began with tawheed— with polytheism as a later development—the basic mission of all the Prophets who made their appearance at intervals in this world was to lead people away from the worship of many gods and back to the worship of the One God. In other words, to turn them away from the adulation of creatures and towards reverence for the Creator. As a proof of the Creator’s existence, the Quran advances the very fact of the existence of the universe. All studies of the universe show that it cannot be sui genesis: some other agent is essential for the universe to have come into existence. This means that the choice for us is not between a universe with God, and a universe without God. It is rather between a universe with God, and no universe at all. Since a non-existent universe is utterly inconceivable, we are forced to accept the option of a universe with God—a necessary condition also for the existence of human beings.
Prophethood in Islam