The encyclopaedic aspect of Barth's theology, i.e. its claim to include dogmatics in all other disciplines, has rarely been reflected in research. This can come as a surprise, given that theology today is in a precarious position in terms of its unity and the mutual relationship of its sub-disciplines. Due to the increasing "subject science" the subjects are becoming more and more distant from each other. Cross-disciplinary efforts for the unity of theology are not often made, but are essential, also for the sake of church and religious practice. Karl Barth linked his Christocentric theology...