Paul’s letter to the Romans is regarded not only as his most significant writing, but as one of the most important writings in the history of the Christian faith. The popularity of Romans is evidenced by the endless number of commentaries, essays, and books devoted to the interpretation of the letter throughout the centuries. Commentators generally accept that Paul states his basic theme or thesis in Rom 1:16–17 and that all the letter’s other ideas and themes revolve around this center. In these two verses, Paul declares that the gospel (1) reveals God’s faithfulness to the promises He made to His people in the OT covenants, and (2) makes possible salvation for every person who believes in the substitutionary life and death of Christ