The landed wealth of the Church alone sufficed to make it a power of the highest rank in the feudal system of the Middle Ages, in which all power fin… - Walter Rauschenbusch

Throughout the Middle Ages the sway of the Church over the moral and spiritual life of the people, her power to inspire and direct their enthusiasms and energies, her chance for molding their conceptions of life, were amazing and unparalleled by any other force.

The Christian movement began with John the Baptist. … in his recorded teaching to the people there is not a word about the customary ritual of religion, about increased Sabbath observance, about stricter washings and sacrifices, or the ordinary exercises of piety. He spoke only of repentance, of ceasing from wrongdoing. He hailed the professional exponents of religion who came to hear him, as a brood of snakes wriggling away from the flames of the judgment. ...The way to prepare for the Messianic era and to escape the wrath of the Messiah was to institute a brotherly life and to equalize social inequalities.

All social movements would gain immensely in enthusiasm, persuasiveness, and wisdom if the hearts of their advocates were cleansed and warmed by religious faith.