Of all the animal world, only humans have the ability to perceive current circumstance in the context of time and space, make moral judgments about right and wrong, and therefore be culpable for intent, which requires premeditation. Man's ability to reason is one aspect that fundamentally sets this "rational animal" apart to uniquely reflect the imago Dei (image of God). Finite human rationality is responsible for these differentiating characteristics, which will be demonstrated to be necessarily dependent on language. Language, then, becomes a necessary but insufficient condition for thought, serving as the fabric or material out of which rational thoughts are constructed. Our worldview, in a global sense, is consequently constructed out of our accumulated knowledge, which is based in language and thereby circumscribes our worldview's boundaries. Denied language, then, man's ability to think would be reduced to immediate, animal-like reasoning. Epistemology, as a subcategory of philosophy, historically has not yet recognized this relationship. Therefore, while nearly all of ancient and modern philosophy views language strictly as a tool for communication, which is necessary for socialization, the primary purpose of this paper will be to demonstrate that language serves a central, pivotal epistemological role in rationalization.