What Exactly is “the Gospel” Anyway? Romans 1

What is “the Gospel of God”? When St. Paul said he was not ashamed of the Gospel, or that he was “set apart for the gospel”, what did he meant by “the gospel”? Do all Christians agree on what this means? And what does “the gospel” require of us? What must we believe? What must we do? Or does it even require that we do anything, except believe in Jesus Christ? Today Marcus Grodi and Dr. Howell begin a series of study on the book of Romans.