Heidegger scholarship has done an admirable job accounting for Luther’s influence on key Heideggerian concepts such as his method of destruction and anxiety. Yet given Heidegger’s statements concerning Luther’s immense personal and philosophical importance, it is likely that Luther’s influence extends further and deeper than might first appear. I argue that this influence also manifests in Heidegger’s concept of authentic existence. In particular, I argue that Luther’s understanding of Christian freedom and servitude form ontic material from which Heidegger draws to (...) come to his general ontological understanding of Dasein’s freedom as power over its existence and servitude to its communal involvements. As Luther understands the freedom of a Christian, everything comes to aid the Christian in salvation, much like Dasein gains power over its existential possibilities in coming to authenticity. Yet this newly created freedom also creates additional ontological or existential connections with one’s community. The consequence of such connections is the addition of new responsibilities, or form of servitude, to one’s community wherein one aids others in coming to faith or authenticity, respectively. (shrink)