The operation of the gospel: It is the power of God (v. 16b). Why be ashamed of power? Power is the one thing that Rome boasted of the most. Greece might have its philosophy, but Rome had its power. The fear of Rome hovered over the empire like a cloud. Were they not the conquerors? Were not the Roman legions stationed all over the known world? But with all of her military power, Rome was still a weak nation. The philosopher Seneca called the city of Rome “a cesspool of iniquity”; and the writer Juvenal called it a “filthy sewer into which the dregs of the empire flood.”

No wonder Paul was not ashamed: He was taking to sinful Rome the one message that had the power to change people’s lives! He had seen the gospel work in other wicked cities, such as Corinth and Ephesus, and he was confident that it would work in Rome. It had transformed his own life, and he knew it could transform the lives of others. There was a third reason why Paul was not ashamed.