Introduction: A Public Theology Christian theology is most at home in public. At its source it has narratives of public circumstance, of action and interaction in public spaces; it lives by ongoing engagement with communities whose lives are never lived entirely in private; and it issues in descriptions and counsels which are applicable in the public world of politics and history. My aim in writing this book is to argue that this is a fair, if unexpected, description of the work of Hans W. Frei: