A controversial proposal for rethinking how Christians engage politically after the death of Christendom. By definition, one of the most integral issues raised by the idea of post-Christendom is the relationship between church and state. For the best part of 1700 years, the institutional church has enjoyed a hand-in-hand relationship with government. Indeed, the church has often been seen as the glue that has stopped political systems from disintegrating into anarchy. But in this post-Christendom era the relation of Church and State has weakened to the point where the church can no longer claim to play any significant part in Government. As part of the post-Christendom series this book will offer perspectives and resources for Christians and churches no longer at the centre of society but on the margins. It invites a realistic and hopeful response to challenges and opportunities awaiting the church in twenty-first century politics. In particular, the book suggests that where it has previously defended the social order, the church now has a brand new opportunity to exercise its prophetic role, challenging injustice, shaking institutions and undermining some of the central values and norms on which society is built.