Abstract

Though the problem of conceptual idolatry has captivated contemporary scholarship on the relationship between philosophy and theology, these discussions’ doctrinal consequences remain underdeveloped. I intervene in these debates by engaging and elucidating Martin Luther’s critique of scholastic metaphysics, a critique which foregrounds ontotheology’s spiritual and ecclesial detriments. Luther’s reforming works, from his pivotal 1525 De servo arbitrio to his last major project, the 1545 Genesis commentaries, reveal how a metaphysical theology based on natural reason leads to Pelagianism by generalizing faith to a rational conceptual norm, the moral Law. Returning, however, to Scripture’s “grammar” – which, when read plainly, deconstructs natural reason’s vanity – allows us to encounter Christ ‘in person’ rather than in the concept. Luther thus suggests sola scriptura as a method for resisting ontotheology, but with dramatic dogmatic consequences, such as justification by faith alone. These consequences complicate modernity’s, and especially modern philosophy’s, theological origins and implications.