This sermon examines Matthew 16:18 to refute the Roman Catholic doctrine of papal supremacy, arguing that Jesus did not establish Peter as the supreme head of the church. The speaker contends that Peter is presented as a leader among equals, with the foundation of the church resting on the collective apostles and prophets, with Christ as the cornerstone. By citing Ephesians 2 and Galatians 2, the text demonstrates that Peter was subject to correction and did not claim infallibility or unique authority over other apostles. The sermon warns against the allure of Roman Catholicism's historical aesthetics, labeling the papacy as blasphemous for usurping the roles of Father, High Priest, and Vicar of Christ. Ultimately, the message calls believers to reject human mediation and submit solely to the authority of Scripture and the supremacy of Jesus Christ.