What is it about Paul's letter to the Romans that has made it the source of spiritual revival and reformation in the church down through the centuries?

The Sabbath School lessons for this quarter focus on one of the most beloved documents in the New Testament—Paul's letter to the Romans. Throughout the history of the Christian Church, Romans has played a significant role in sparking spiritual revival and reformation. It was through reading Romans that Augustine, the famous 4th century church father, surrendered his heart to Christ and became a Christian. It was the study Romans that helped Martin Luther ...