Abstract

This article surveys some contemporary literature in analytic philosophy of religion bearing on the relationship between God and possible worlds. Most of these authors take “God” to denote an essentially omnipotent, omniscient, and perfectly good being, who is the creator and sustainer of all that contingently exists. Since the 1960s, philosophers have employed the conceptual apparatus of worlds to discuss topics pertaining to God. Very roughly, the actual world is the way things are, whereas each possible world is a way things might have been. Many philosophers believe that if God exists, he could not have failed to exist. In other words, God exists in all possible worlds; God is a necessary being. The first section of this article, God and Necessity, discusses several accounts of what this means, and of the relationship between God and worlds. Worlds are widely assumed to bear axiological properties: some are good, others are bad; some are better, others are worse. Some authors have judged that God could not exist in bad worlds. Whether this counts against theism is discussed under God and Bad Worlds (The Modal Problem of Evil). If all worlds bear axiological properties, and can be compared, it is natural to wonder whether the hierarchy has an upper bound. The literature concerning this topic is surveyed under Is there a Best Possible World?. It is widely assumed that if God exists, he chooses a world to make actual. The next three sections of this article consider this choice: God’s Choice if there is One Best Possible World, God’s Choice if there are Multiple Best Worlds, and God’s Choice if there are No Best Worlds. Some authors hold that certain pairs of worlds simply cannot be compared. The literature surrounding God’s choice between such pairs is discussed under God’s Choice and Incomparable Worlds. Some philosophers have recently argued that if theism is true, the actual world is a multiverse made up of many worthy universes. Their proposals are discussed under God and the Multiverse. Finally, this article surveys some literature that attempts to answer the following question, with respect to the value of worlds: What Difference Would—or Does—God’s Existence Make? Given space constraints, this article does not discuss arguments for God’s existence that invoke possible worlds, such as “ontological” arguments. Nor does it discuss arguments for atheism that appeal to evil, except insofar as theistic multiverse theories constitute responses.