If you really want to follow the development of conservative Christianity, track its musical hits. In the early 1900s you might have heard "The Old Rugged Cross," a celebration of the atonement. By the 1980s you could have shared the Jesus-is-my-buddy intimacy of "Shine, Jesus, Shine." And today, more and more top songs feature a God who is very big, while we are...well, hark the David Crowder Band: "I am full of earth/ You are heaven's worth/ I am stained with dirt/ Prone to depravity."
Calvinism is back, and not just musically. John Calvin's 16th century reply to medieval Catholicism's buy-your-way-out-of-purgatory excesses is Evangelicalism's latest success story, complete with an utterly sovereign and micromanaging deity, sinful and puny humanity, and the combination's logical consequence, predestination: the belief that before time's dawn, God decided whom he would save (or not), unaffected by...