THE PRACTICAL PROBLEMS OF SOLA SCRIPTURA
Simply stated, the Protestant doctrine of sola scriptura ("Scripture alone" ) teaches that every teaching in Christian theology (everything pertaining to "faith and practice" ) must be able to be derived from Scripture alone. This is expressed by the Reformation slogan Quod non est biblicum, non est theologicum ("What is not biblical is not theological," cf. Dictionary of Latin and Greek Theological Terms: Drawn Principally from Protestant Scholastic Theology, Richard A. Muller, Baker, 1985).
An essential part of this doctrine, as it has been historically articulated by Protestants, is that theology must be done without allowing Tradition or a Magisterium (teaching authority) any binding authority. If Tradition or a Magisterium could bind the conscience of the believer as to what he was to believe then the believer would not be looking to Scripture alone as his authority.
A necessarily corollary of the doctrine of sola scriptura is, therefore, the idea of an absolute right of private judgment in the interpretation of the Scriptures. Each individual has the final prerogative to decide for himself what the correct interpretation of a given passage of Scripture means, irrespective of what anyone-or everyone-else says. If anyone or even everyone else together could tell the believer what to believe, Scripture would not be his sole authority; something else would have binding authority. Thus, according to sola scriptura, any role Tradition, a Magisterium, Bible commentaries, or anything else may play in theology is simply to suggest interpretations and evidence to the believer as he makes his decision. Each individual Christian is thus put in the position of being his own theologian.
Of course, we all know that the average Christian does not exercise this role in any consistent way, even the average person admitted by Fundamentalists to be a genuine, "born again" believer. There are simply too many godly grannies who are very devout in their faith in Jesus, but who are in no way inclined to become theologians.
Not only is the average Christian totally disinclined to fulfill the role of theologian, but if they try to do so, and if they arrive at conclusions different than those of the church they belong to-an easy task considering the number of different theological issues-then they will quickly discover that their right to private judgment amounts to a right to shut up or leave the congregation. Protestant pastors have long realized (in fact, Luther and Calvin realized it) that, although they must preach the doctrine of private judgment to ensure their own right to preach, they must prohibit the exercise of this right in practice for others, lest the group be torn apart by strife and finally break up. It is the failure of the prohibition of the right of private judgment that has resulted in the over 20,000 Christian Protestant denominations listed in the Oxford University Press's World Christian Encyclopedia.
The disintegration of Protestantism into so many competing factions, teaching different doctrines on key theological issues (What kind of faith saves? Is baptism necessary? Needed? Is baptism for infants? Must baptism be by immersion only? Can one lose salvation? How? Can it be gotten back? How? Is the Real Presence true? Are spiritual gifts like tongues and healing for today? For everyone? What about predestination? What about free will? What about church government?) is itself an important indicator of the practical failure of the doctrine of private judgment, and thus the doctrine of sola scriptura.
However, there is a whole set of practical presuppositions that the doctrine of sola scriptura makes, every one of which provides not just an argument against the doctrine, but a fatal blow to it. Sola scriptura simply cannot be God's plan for Christian theology.
In fact, it could never even have been thought to be God's plan before a certain stage in European history because, as we will see, it could have only arisen after a certain technological development which was unknown in the ancient world. Before that one development, nobody would have ever thought that sola scriptura could be the principle God intended people to use, meaning it was no accident that the Reformation occurred when it did.
If God had intended the individual Christian to use sola scriptura as his operating principle then it would have to be something the average Christian could implement. We can therefore judge whether sola scriptura could have been God's plan for the individual Christian by asking whether the average Christian in world history could have implemented it.
Not only that, but since God promised that the Church would never pass out of existence (Matt. 16:18, 28:20), the normal Christian of each age must be able to implement sola scriptura, including the crucial patristic era, when the early Church Fathers hammered out the most basic tenets of Christian orthodoxy.
It is in this practical area that the doctrine comes crashing down, for it has a number of presuppositions which are in no way true of the average Christian of world history, and certainly not of the average Christian of early Church history.
First, if each Christian is to make a thorough study of the Scriptures and decide for himself what they mean (even taking into consideration the interpretations of others) then it follows that he must have a copy of the Scriptures to use in making his thorough study (a non-thorough study being a dangerous thing, as any Protestant apologist warning one against the cults and their Bible study tactics will tell you). Thus the universal application of sola scriptura presupposes the mass manufacturing of books, and of the Bible in particular.
This, however, was completely impossible before invention of the printing press, for without that there could not be enough copies of the Scriptures for the individual Christians to use. Sola scriptura therefore presupposes the inventing of the printing press, something that did not happen for the first 1,400 years of Church history (which will be the almost three-quarters of it if the world ends any time soon).
It is often noted by even Protestant historians that the Reformation could not have taken off like it did in the early 1500s if the printing press had not been invented in the mid-1400s, and this is more true than they know, because the printing press not only allowed the early Protestant to mass produce works containing their teachings about what the Bible meant, it allowed the mass production of Bible itself (as Catholics were already doing; one does realize, of course, that the Gutenberg Bible and the other versions of the Bible being produced before Protestantism were all Catholic Bibles).
Without the ability to mass produce copies of the Scriptures for the individual Christians to interpret, the doctrine of sola scriptura could not function, since one would only have very limited access to the texts otherwise-via the Scripture readings at Mass and the costly, hand-made copies of the Bible kept on public display at the church. Thus sola scriptura presupposes the printing press.
This is a key reason why the Reformation happened when it did-several decades after the invention of the printing press. It took time for the idea of the printing press to make its mark on the European mind and get people excited about the idea of easily available books. It was in this heady atmosphere, the first time in human history when dozens of ancient works were being mass produced and sold, that people suddenly got excited with the thought, "Hey! We could give copies of the Bible to everyone! Everyone could read the Scriptures for themselves!"-a thought which led very quickly into sola scriptura in the minds of those who wished to oppose historic Christian theology, as it would provide a justification for their own desire to depart from orthodoxy ("Hey, I read the Scriptures, and this is what they said to me!" ).