Any purely phenomenological description of the human being as in some sense “finite” must avail itself of a concept of finitude that does not rely, implicitly or explicitly, on the concept of God. Theologically motivated descriptions, however, face no such dilemma; they can and, indeed, must avail themselves of some concept of the human creature as a finite being created in God's image (Gen 1:27 KJV). For there to be a meaningful difference between these two descriptions, the concept of finitude common to both must have a different sense in each. These are some of the methodological requirements Heidegger lays down in Sein und Zeit §10: “The Delimitation [Abgrenzung] of Phenomenology from Anthropology, Psychology, and Biology.” Heidegger's strategy for distinguishing the analytic of Dasein, in which the concept of finitude (Endlichkeit) plays a foundational role, from what he refers to as “the anthropology of Christianity” consists in distinguishing between two concepts of finitude: (1) finitude as lack or imperfection, defined as ens finitum relative to God as ens infinitum, and (2) an original concept of finitude, which, not being defined relative to God, is purely phenomenological and constitutes the horizon of any and all understanding of Being.