All Bad Things — Stephen Blackmoore

Luke Samson survived the apocalypse but when he found faith things really went to Hell. "Join or die." That was Samson's sermon, and he delivered salvation from the business end of a sledgehammer. His army of God-fearing maniacs marches toward Los Angeles and a war that will bring the heathens to their knees. But every war has a secret. And when the truth behind this crusade gets out, Samson will wish he'd never been saved at all.