What is the greater source of Pauline theology?

The greater source of Pauline theology is the Apostle Paul’s letters, particularly the epistles in the New Testament, such as Romans, Corinthians, and Galatians. These writings articulate key theological concepts, including justification by faith, the role of grace, and the significance of Christ's resurrection. Paul's teachings also emphasize the relationship between the Jewish law and Christian faith, as well as the implications of salvation for both Jews and Gentiles. Overall, his letters provide a foundational framework for understanding early Christian doctrine.