THERE HAS ALWAYS been concern among God's people over whether their fellow believers are walking the talk. Rarely is the focus turned to the talk itself and just how walkable it is. Paul, in I Corinthians 1, refers to "the foolishness of preaching." This was an obvious quip at the scoffing Greeks and others with whom he was in confrontation from time to time, who held that disdainful view of the gospel. "For," he explains, "the preaching of the cross is to them that perish, foolishness." He obviously didn't think it to be so, nor was he enjoining believers to think it so or make it so. So...