What is Tradition? Why does the Roman Catholic Church reject Sola Scriptura? Why did the Reformers reject the absolute authority of Tradition? Is Sola Scriptura to be blamed for all the separation in the Protestant Church? Can’t I just study the Bible on my own and let the Holy Spirit guide me to all truth? This lesson will center on the doctrine of Christian authority. Here, focus will be on the Protestant doctrine of sola Scriptura as compared to the Roman Catholic doctrine of dual-source authority. The student should become aware of the arguments put forth by both Roman Catholics and Protestants with regard to ultimate authority.  While this lesson should provide the student with a solid defense and a greater appreciation for the doctrine of sola Scripture, it should also give the student a greater appreciation for the role that tradition has to play as an authority (albeit a fallible authority) in the Christian life. In the end, the student should understand that that Protestantism rests on the bedrock of the doctrine of sola Scripture, that the Scriptures are our final and only infallible authority in matters of faith and practice.