This book investigates what it means, and whether it is coherent, to say that there is a God. The author concludes that, despite philosophical objections, the claims which religious believers make about God are generally coherent; and that although some important claims are coherent only if the words by which they are expressed are being used in stretched or analogical senses, this is in fact the way in which theologians have usually claimed they are being used. This revised edition includes various minor corrections and clarifications.