In this provocative work, J. L. Schellenberg addresses those who, influenced by science, take a negative view of religion, thinking of it as outmoded if not decadent. He promotes the view that transcendently oriented religion is developmentally immature, showing the consilience of scientific thinking about deep time with his view. From this unique perspective, he responds to a number of influential cultural factors commonly thought to spell ill for religion, showing the changes - changes favorable to religion - that are now called for in how we understand them and their proper impact. Finally, he provides a defense for a new and attractive religious humanism that benefits from, rather than being hindered by, religious immaturity. In Schellenberg's view, religion can and should become a human project as monumental as science.