If except for the Pauline mission the world would have become devoted to Isis or Mithras, then Paul was certainly one of the supreme benefactors of the human race.
Even apart from any detailed investigation, however, one difference between the religion of Paul and the oriental religions is perfectly obvious. The oriental religions were tolerant of other faiths; the religion of Paul, like the ancient religion of Israel, demanded an absolutely exclusive devotion. A man could become initiated into the mysteries of Isis or Mithras without at all giving up his former beliefs; but if he were to be received into the Church, according to the preaching of Paul, he must forsake all other Saviours for the Lord Jesus Christ. The difference places the achievement of Paul upon an entirely different plane from the successes of the oriental mystery religions. It was one thing to offer a new faith and a new cult as simply one additional way of obtaining contact with the Divine, and it was another thing, and a far more difficult thing (and in the ancient world outside of Israel an unheard-of thing), to require a man to renounce all existing religious beliefs and practices in order to place his whole reliance upon a single Saviour. Amid the prevailing syncretism of the Greco-Roman world, the religion of Paul, with the religion of Israel, stands absolutely alone. The successes of the oriental religions, therefore, only place in clearer light the uniqueness of the achievement of Paul. They do indeed indicate the need and longing of the ancient world for redemption; but that is only part of the preparation for the coming of the gospel which has always been celebrated by devout Christians as part of the divine economy, as one indication that "the fullness of the time" was come. But the wide prevalence of the need does not at all detract from the achievement of satisfying the need. Paul's way of satisfying the need, as it is hoped the later chapters will show, was unique ; but what should now be noticed is that the way of Paul, because of its exclusiveness, was at least far more difficult than that of any of his rivals or successors. His achievement was therefore immeasurably greater than theirs.
But if the successes of the oriental religions do not detract from the achievement of Paul, what shall be said of the successes of pre-Christian Judaism? It must always be remembered that Judaism, in the first century, was an active missionary
