Sola Scriptura is the Protestant doctrine that holds that Sacred Scripture, i.e., the Bible, is the sole infallible theological authority for Christians. Consequently, a Christian is not bound to assent to a doctrine that is not deducible from Sacred Scripture alone. According to Lutheran theology, for instance:
[T]he Word of God alone should be and remain the only standard and rule of doctrine...to which everything should be subjected (Formula of Concord, "Comprehensive Summary, Foundation, Rule and Norm", par. 10).
Similarly, according to traditional Reformed theology (as expressed in the Westminster Confession):
The Supreme Judge, by which all controversies of religion are to be determined, and all decrees of councils, opinions of ancient writers, doctrines of men, and private spirits, are to be examined, and in whose sentence we are to rest, can be no other but the Holy Spirit speaking in the Scripture (Westminster Confession I.X).
Thus, Sacred Tradition and the teaching authority of the Church are not infallible, and the Church is consequently not capable of giving an infallible interpretation of Scripture. Rather, as the Westminster Confession declares:
The infallible rule of interpretation of Scripture is the Scripture itself; and therefore, when there is a question about the true and full sense of any scripture (which is not manifold, but one), it must be searched and known by other places that speak more clearly (ibid., I.IX).
What follows are a few arguments against the doctrine of sola Scriptura.
