Hilary of Poitiers (c300-368), Bishop and Theologian, was instrumental in shaping the development of pro-Nicene theology in the West. Carl Beckwith engages the extensive scholarship on the fourth-century Trinitarian debates and brings new light on the structure and chronology of Hilary's monumental De Trinitate. There is a broad scholarly consensus that Hilary combined two separate theological works, a treatise on faith (De Fide) and a treatise against the 'Arians' (Adversus Arianos), to create De Trinitate. In spite of this the question of when and why Hilary performed this task has largely remained unanswered. Beckwith addresses this puzzle, situating Hilary's De Trinitate in its historical and theological context and offering a close reading of his text. He demonstrates that Hilary made significant revisions to the early books of his treatise; revisions that he attempted to conceal from his readers in order to give the impression of a unified work on the Trinity. Beckwith argues
