The author aligns the modern structuralist emphasis on the meaning-generating capacity of “oppositional pairs” with Augustine’s penchant for the ancient rhetorical trope of “antithesis.” The resultant rereading of De Trinitate uncovers Augustine’s rhetorical construction of a christocentric theological epistemology that undergirds the work’s structure, polemical agenda, and the classic theologoumenon of the trinitarian image in human interiority.