While all sides of the debate have their pluses and minuses, I think that Ephesians is deutero-Pauline. Determinative for me is the writing style. When one objectively examines the Greek of Ephesians, with an agenda neither to uphold the tradition nor to question it, one finds a mode of writing unlike any other in the New Testament. Romans, Galatians, and Philippians, to name a few, come directly to the point and require a position to be taken. Ephesians, on the other hand, adds prepositional phrase