This essay shows why Karl Rahner’s “Chalcedon: End or Beginning?,” also titled “Current Problems in Christology” (1954), stands as a breakthrough in contemporary Catholic Christology. After describing the Neo-Thomism and Neo-Scholasticism of the early twentieth century, it examines one instance of this body of thought: Reginald Garrigou-Lagrange’s “Christ the Savior” (1946). Then, the essay reviews the argument of “Chalcedon: End or Beginning?” Finally, it contrasts Garrigou-Lagrange’s literal Thomism and Rahner’s transcendental Thomism.

Two models of person are discussed, and while it is noted that Rahner’s christology emphasizes person as subject and Barth’s person as self-agent, both christologies include the two models. Rather than view the two models as an either/or choice or as in conflict with one another as Bruce Marshall seems to do, they should be thought of as paradoxical, and as such, valuable for leading to new insights in christology.