St. Paul is the second most prolific contributor to the New Testament. Thirteen letters are attributed to him. The letters are written in Greek. The epistles contain the earliest account of Christian doctrine and provide information on the life of the infant Church. They are full of expositions of what Christians should believe and how they should live. | St. Paul is the second most prolific contributor to the New Testament. Thirteen letters are attributed to him. The letters are written in Greek. The epistles contain the earliest account of Christian doctrine and provide information on the life of the infant Church. They are full of expositions of what Christians should believe and how they should live. |