This meeting with Jesus transformed Paul’s spiritual life completely, and he became a faithful follower of Jesus Christ. Paul’s enthusiasm and great talent in preaching the gospel have made him popular among Christians all over the world, besides, the New Testament is made up of three-quarters of his work. His main audience included the Gentiles. Paul experienced suffering in spreading the gospel and was later imprisoned at the Mamertine Prison for nine months. This is where Paul wrote most of his epistles to the followers he had established before facing execution.