"If it ain't broke, don't fix it." But it's no secret that the Christian church is «broke,» and does need fixing. Despite great effort, things are going badly for us. We've tried trendy and tech-savvy, entrepreneurial and coffee-house gritty. They're not helping. Our problem is deeper than that. Our problem is our instincts–instincts informed by our story. There was a time when the Christian church was a powerfully transformative presence in society. It can be...