Catholics Should Believe Their First Pope? The apostle Peter played a prominent role in the early church. Soon after he abandoned his career as a fisherman to follow Christ, he became a fisher of men. Several of his sermons were recorded in the Book of Acts, and his two epistles are included in the divinely inspired Scriptures. Since Catholics have been taught that Peter was their first pope, I have developed some questions to shed some light on his theology, ecclesiology, and soteriology. All of the answers come directly from his writings and sermons. It is my prayer that those of us who have been sanctified by the truth will share these glorious truths with our Catholic friends and loved ones.