Abstract
Karl Holl’s interpretation of Luther’s concept of religion is based on his theoretical understanding of will. The research literature has often overlooked the fact that this foundation itself is based on a theory of emotions. The psychological implications of his interpretation of Luther, which are merely implied by Holl, can be decoded in the context of contemporary research, in this article on the basis of work by Hermann Siebeck and Reinhold Seeberg. In this way, this article systematically highlights the complex structure of Luther’s concept of religion, as interpreted by Holl, with regard to its conceptual history.