In this extensively researched study, W. A. Sumner focuses primarily on Christianity in order to explore paradox in theology. Other religions, particularly Judaism, and some political systems are also covered. 

The author takes a strong Creationist stance, with a passionately argued critique of the theory of evolution, especially as propounded by Richard Dawkins. 

The rich subject matter takes in the Gospels, the miracles and parables but also includes contemporary analogies to help illustrate the topic. In particular, the author delves into the origins and early writings of Christianity, and shows how paradox has been a feature from the start. Free will and predestination, the Trinity and the Incarnation, and the existence of evil, are among the many paradoxes he looks into. He maintains that paradox is an integral and enriching aspect of Christianity and his message is one of acceptance of these tensions, since God’s divine plan is beyond human understanding.