Carl Schmitt's work has been controversial since its origins not only in political terms, because of his critique of liberalism, but also because of the rejection by some renowned theologians of the the theological foundation of his juridical-political positions. For this reason, not only his detractors but also his followers have created the image of a "Nazi", "reactionary" or "authoritarian" Carl Schmitt. While it is true that his work draws on Catholic thinkers considered counter-revolutionary - such as De Maistre, De Bonald and Donoso Cortés - it is also true that Schmitt's thought has other theological foundations, so that appealing to a general Catholic ethos to identify the core of his thought is not only tendentious, but, to say the least, misleading. Unfortunately, most jurists, political scientists and philosophers, of whatever orientation, have forgotten this fundamental dimension. In the face of this interpretation, our purpose is to clarify the true theological foundation of Schmittian thought.