John is the chief exponent of the principle of love. God is love. The reign of God is a reign of love; the Kingdom of God is a Kingdom of perfect love. In the Book of Revelation, John describes two cities; one wicked; and the other, perfect. The first is elegantly clothed in purple and gold, bedecked with precious stones. But her heart is rotten. Lust and vice have ruined her. Her dominating sins are sex immorality and luxury. The perfect city is the new Jerusalem, a community of happy people, motivated in all things by love. Nothing that defileth is permitted in the New Jerusalem, nor anything that worketh abomination, or maketh a lie.[VIII-43]

The fundamentals of early Christian social thought may now be summarized. The New Testament authorities offered no system of sociology; they did not submit a scientific program for the social reorganization of the world, but made, however, substantial contributions.

(1) Early Christian social thought represented a system of changing the attitudes of individuals. By making over individuals the world can be improved. The individual is exalted. The individual must be re-educated. The right sort of men will produce the right sort of social structure and the proper type of social process and society. Christianity indicated socialized principles of conduct which the disciples of Christianity must accept.

(2) The Fatherhood of God is made a cardinal principle of the Kingdom. When all persons recognize the Fatherhood of God, they will have a strong tie binding them together and impelling them to regenerated living.

(3) The universal brotherhood of man is a natural corollary of the principle of the Fatherhood of God. When everyone recognizes the underlying brotherhood of all individuals, the prejudices of race which now so bitterly divide mankind will begin to dissolve.

(4) Marriage is a divine right, and husbands and wives shall work together in behalf of their children. The family is the chief social institution which the New Testament writers supported.

(5) Little children set examples of simple faith and trust. They call for sacrifice and transform parents into altruistic beings.

(6) Early Christian thought was missionary. It was not self-centered. It said: Go. It drove out its adherents unto all forms of unselfish living. It required that its followers help the sick, preach the gospel, travel into foreign lands. It was an activity religion. It defined in living terms the dynamic and driving principle of love.

Chapter IX
Social Thought in the Middle Ages

The social thought of the Middle Ages was in part a reflection of the unsettled social conditions, and in part an outgrowth of the thought and life of the five centuries which intervened between the beginning of the Christian Era and the Fall of Rome. During these centuries the Church Fathers moved away from the pristine Christian teachings. While they accepted the underlying social nature of mankind and believed that government and social organization were necessary in order to curb evil tendencies, their teachings treated government as a divine institution and transformed rulers into super-powerful beings with divine rights. The autocratic rather than the democratic element in government received support.