A Commentary on Romans — The Prologue (1:1-7)

Paul had, at the time of his writing, never visited the Roman church in person (Rom 1:13; 15:22-29). He thus expands his salutation so as to include a creedal summary of the gospel and his apostolic calling. Presumably Paul’s intent here was to establish credibility with the recipients of his letter, whom he had not yet met with in person.