In his theology he avoided certain errors which lay near at hand. He avoided the error of Marcion, who in the middle of the second century combated Jewish particularism by representing the whole of the Old Testament economy as evil and as the work of a being hostile to the good God. That error would have deprived the Church of the prestige which it derived from the possession of an ancient and authoritative Book; as a merely new religion Christianity never could have appealed to the Gentile world. Paul avoided also the error of the so-called "Epistle of Barnabas," which, while it accepted the Old Testament, rejected the entire Jewish interpretation of it; the Old Testament Law, according to the Epistle of Barnabas, was never intended to require literal sacrifices and circumcision, in the way in which it was interpreted by the Jews. That error, also, would have been disastrous; it would have introduced such boundless absurdity into the Christian use of the Scriptures that all truth and soberness would have fled.
Avoiding all such errors, Paul was able with a perfectly good conscience to accept the priceless support of the Old Testament Scriptures in his missionary work while at the same time he rejected for his Gentile converts the ceremonial requirements which the Old Testament imposed. The solution of the problem is set forth clearly in the Epistle to the Galatians. The Old Testament Law, according to Paul, was truly authoritative and truly divine. But it was temporary; it was authoritative only until the fulfillment of the promise should come. It was a schoolmaster to bring the Jews to Christ; and (such is the implication, according to the Epistle to the Romans) it could also be a schoolmaster to bring every one to Christ, since it was intended to produce the necessary consciousness of sin.
This treatment of the Old Testament was the only practical solution of the difficulty. But Paul did not adopt it because it was practical; he adopted it because it was true. It never occurred to him to hold principle in abeyance even for the welfare of the souls of men. The deadening blight of pragmatism had never fallen upon his soul.
The Pauline grounding of the Gentile mission is not to be limited, however, to his specific answer to the question, "What then is the law?" It extends rather to his entire unfolding of the significance of the Cross of Christ. He exhibited the temporary character of the Old Testament dispensation by showing that a new era had begun, by exhibiting positively the epoch-making significance of the Cross.
At this point undoubtedly he had precursors. The significance of the Cross of Christ was by no means entirely unknown to those who had been disciples before him; he himself places the assertion that Christ "died for our sins according to the Scriptures" as one of the things that he had "received." But unless all indications fail Paul did bring an unparalleled enrichment of the understanding of the Cross. For the first time the death of Christ was viewed in its full historical and logical relationships. And thereby Gentile freedom, and the freedom of the entire Christian Church for all time, was assured.
Inwardly, indeed, the early Jerusalem disciples were already free from the Law; they were really trusting for their salvation not to their observance of the Law but to what Christ had done for them. But apparently they did not fully know that they were free; or rather they did not know exactly why they were free. The case of Cornelius, according to the Book of Acts, was exceptional; Cornelius had been received into the Church without being circumcised, but only by direct command of the Spirit. Similar direct and unexplained guidance was apparently to be waited for if the case was to be repeated. Even Stephen had not really advocated the immediate abolition of the Temple or the abandonment of Jewish prerogatives in the presence of Gentiles.
The freedom of the early Jerusalem Church, in other words, was not fully grounded in a comprehensive view of the meaning of Jesus' work. Such freedom could not be permanent. It was open to argumentative attacks, and as a matter of fact such attacks were not long absent. The very life of the Gentile mission at Antioch was threatened by the Judaizers who came down from Jerusalem and said, "Except ye be circumcised after the manner of Moses, ye cannot be saved." Practical considerations, considerations of church polity, were quite powerless before such attacks; freedom was held by but a precarious tenure until its underlying principles were established. Christianity, in other words, could not live without theology. And the first great Christian theologian was Paul.
It was Paul, then, who established the principles of the Gentile mission. Others labored in detail, but it was he who was at the heart of the movement. It was he, far more than any other one man, who carried the gospel out from Judaism into the Gentile world.
The importance of the achievement must be apparent to every historian, no matter how unsympathetic his attitude toward the content of Christianity may be. The modern European world, what may be called "western civilization," is descended from the civilization of Greece and Rome. Our languages are either derived directly from the Latin, or at any rate connected with the same great family. Our literature and art are inspired by the great classical models. Our law and government have never been independent of the principles enunciated by the statesmen of Greece, and put into practice by the statesmen of Rome. Our philosophies are obliged to return ever anew to the questions which were put, if not answered, by Plato and Aristotle.
Yet there has entered into this current of Indo-European civilization an element from a very diverse and very unexpected source. How comes it that a thoroughly Semitic book like the Bible has been accorded a place in medieval and modern life to which the glories of Greek literature can never by any possibility aspire? How comes it that the words of that book have not only made political history—moved armies and built empires—but also have entered into the very fabric of men's souls? The intrinsic value of the Book would not alone have been sufficient to break down the barriers which opposed its acceptance by the Indo-European race. The race from which the Bible came was despised in ancient times and it is despised to-day. How comes it then that a product of that race has been granted such boundless influence? How comes it that the barriers which have always separated Jew from Gentile, Semite from Aryan, have at one point been broken through, so that the current of Semitic life has been allowed to flow unchecked over the rich fields of our modern civilization?
The answer to these questions, to the large extent which the preceding outline has attempted to define, must be sought in the inner life of a Jew of Tarsus. In dealing with the apostle Paul we are dealing with one of the moving factors of the world's history.
That conclusion might at first sight seem to affect unfavorably the special use to which it is proposed, in the present discussion, to put the examination of Paul. The more important Paul was as a man, it might be said, the less important he becomes as a witness to the origin of Christianity. If his mind had been a blank tablet prepared to receive impressions, then the historian could be sure that what is found in Paul's Epistles about Jesus is a true reflection of what Jesus really was. But as a matter of fact Paul was a genius. It is of the nature of genius to be creative. May not what Paul says about Jesus and the origin of Christianity, therefore, be no mere reflection of the facts, but the creation of his own mind?
The difficulty is not so serious as it seems. Genius is not incompatible with honesty—certainly not the genius of Paul. When, therefore, Paul sets himself to give information about certain plain matters of fact that came under his observation, as in the first two chapters of Galatians, there are not many historians who are inclined to refuse him credence. But the witness of Paul depends not so much upon details as upon the total fact of his religious life. It is that fact which is to be explained. To say merely that Paul was a genius and therefore unaccountable is no explanation. Certainly it is not an explanation satisfactory to modern historians. During the progress of modern criticism, students of the origin of Christianity have accepted the challenge presented by the fact of Paul's religious life; they have felt obliged to account for the emergence of that fact at just the point when it actually appeared. But the explanations which they have offered, as the following discussion may show, are insufficient; and it is just the greatness of Paul for which the explanations do not account. The religion of Paul is too large a building to have been erected