Unless you’ve been on a mission to Mars the last few years, you’ll be aware of the lively public debate over the relationship between religion and civil government, the proper roles of church and state, the place of the Bible in politics, and so on. Too many of the voices in the discussion offer little more than superficial, pugilistic sloganeering, driven more by cultural currents and dueling memes than by sober theological reflection. On the other hand, the best writings on the subject ...