How many times have you heard someone respond to a specific Catholic teaching, say on Mary or on the papacy, with the question, “Where’s that in the Bible?” So often the intent of this question is to imply that these Catholic teachings are in fact not found in Scripture, and are therefore not to be believed.
But where’s that in the Bible? Where does the Bible teach that what Christians should believe must be found in Scripture? The theological assumption here is often called by its technical Latin name, sola Scriptura, or Scripture alone, and amounts to something like, “the Bible is the only authority on matters of Christian doctrine.”
Certainly 2 Timothy 3:16-17 teaches that, “All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the man of God may be thoroughly equipped for every good work” (NIV). That all Scripture is God-breathed, or inspired, is of course true and is not something only taught by Protestants; the Catholic Church equally affirms this teaching, and in fact cites this passage, e.g. in the Second Vatican Council’s 1965 dogmatic constitution on divine revelation, Dei Verbum (no. 11; see also the Catechism of the Catholic Church, ftnt 70 to no. 105).