Philip Kennedy argues that any strategy which seeks to rejuvenate Christianity by repeating age-old doctrines and resisting far-reaching conceptual reconstructions is doomed. He proposes that traditional Christian theology must extensively change many of its formulae and theses because of a multitude of modern social, historical, and intellectual revolutions. Kennedy offers a grand historical sweep of the genesis of the modern age, and covers all of the relevant debates, conflicts and controversies surrounding and informing this topic.