As an Evangelical Protestant, Stephen Ray realized that the real issue dividing Catholics and Protestants was authority. Everything else was secondary to the issue of authority. Protestants accept the authority of the Bible alone, whereas Catholics understand the authority to be residing in the Magisterium, the Scriptures and the Sacred Tradition.

Ray goes through the Scriptures and writings from the first five centuries of the early Church to demonstrate that the early Christians had a clear understanding of the primacy of Peter in the See of Rome. He tackles the tough issues in an attempt to expose how the opposition is misunderstanding the Scriptures and history. He uses many Evangelical Protestant scholars and historians to support the Catholic position.

This book contains the most complete compilation of Scriptural and Patristic quotations on the primacy of Peter and the Papal office of any book currently available.