Then the Master went away and the tremendous forces of human life and history laid hold on the movement which so vitally he had begun. His followers began building churches. Just as the Wesleyans had to leave the Church of England, not because they wanted to, but because the Anglicans would not keep them, so the Christians, not because they planned to, but because the synagogue was not large enough to hold them, had to leave the synagogue. They began building creeds; they had to. Every one of the first Christian creeds was written in sheer self-defense. If we had been Christians in those first centuries, when a powerful movement was under way called Gnosticism, which denied that God, the Father Almighty, had made both the heaven and the earth, which said that God had made heaven indeed but that a demigod had made the world, and which denied that Jesus had been born in the flesh and in the flesh had died, we would have done what the first Christians did: we would have defined in a creed what it was the Christians did believe as against that wild conglomeration of Oriental mythology that Gnosticism was, and we would have shouted the creed as a war cry against the Gnostics. That is what the so-called Apostles' Creed was--the first Christian battle chant, a militant proclamation of the historic faith against the heretics; and every one of its declarations met with a head-on collision some claim of Gnosticism. Then, too, the early Christians drew up rituals; they had to. We cannot keep any spiritual thing in human life, even the spirit of courtesy, as a disembodied wraith. We ritualize it--we bow, we take off our hats, we shake hands, we rise when a lady enters. We have innumerable ways of expressing politeness in a ritual. Neither could they have kept so deep and beautiful a thing as the Christian life without such expression. So historic Christianity grew, organized, creedalized, ritualized. And ever as it grew, a peril grew with it, for there were multitudes of people who joined these organizations, recited these creeds, observed these rituals, took all the secondary and derived elements of Christianity, but often forgot that vital thing which all this was meant in the first place to express: a first-hand, personal experience of God in Christ. That alone is vital in Christianity; all the rest is once or twice or thrice removed from life. For Christianity is not a creed, nor an organization, nor a ritual. These are important but they are secondary. They are the leaves, not the roots; they are the wires, not the message. Christianity itself is a life.