Abstract
It is well-known that Karl Rahner studied with Heidegger, but although there has been some recent interest in Rahner’s eschatology, it is rarely recognised how substantially Rahner’s discussion of the future draws on Heidegger’s earlier writings on time. At the same time, it is increasingly desirable to show how technical issues in theology bear upon concrete political practice in the public sphere. This article shows the extent of Rahner’s use of Heidegger and explains how Rahner’s understanding of the future relates to concrete questions of ethics and Christian self-understanding.