Two theories of catholicity
It is not too much to say that in the age in which Christianity first appeared it was difficult for men to appreciate the conception of a purely moral and spiritual authority which was to be universal and perpetual. Another idea of catholicity soon began to take possession of men's minds—the idea of a temporal and earthly organization of the kingdom of heaven. In this conception of the church the bond of union was not moral and spiritual—not the inevitable result of divine life and love in the individual members—but its pretended catholicity was to be secured by official, administrative, legislative, and judicial functions under a human headship and a self-perpetuating human magistracy. Such was the "mystery of iniquity," and in its developed form historically it was "the man of sin." The student of the New Testament can easily see that the great Founder never intended that the boundary of his church should be determined by the administrative functions of a self-perpetuating clerical corporation. But, on the other hand, the real church embraces the entire spiritual brotherhood, and out of this spiritual membership was developed by the Spirit of God the capacity and authority to teach, guide, and instruct. What a contrast these two conceptions present!
The power of the keys
Out of that worldly conception of the kingdom of God grew the Romish figment of the "power of the keys." According to this idea, Christ constituted his ministers a sort of clerical, close corporation invested with direct authority over souls so that without their priestly mediation the kingdom of heaven is forever shut against men. The words "keys of the kingdom of heaven" (Matt. 16:19) are evidently nothing more than a figurative expression indicating the moral influence in the kingdom which Peter in particular should wield with peculiar energy and efficiency. According to Matt. 18:18 all the apostles and others were to exercise the same functions. In time, this expression denoting moral influence and usefulness in the service of Christ was tortured into an engine of despotism and made the means of spiritual tyranny over the consciences of millions of men and women. The corporation entrusted with such power durst not be resisted, and the church was identical with the hierarchy.
But all of Rome's boasted catholicity, centralized in an official, administrative corporation, is a chimera; for it is a fact that multitudes are accepted of God as members of the divine family who are not identified with the hierarchy. The real catholic church, embracing the whole spiritual brotherhood, is therefore something else.
Main source of ecclesiasticism
But we have not yet reached in this discussion the tap-root of the evil tree of human ecclesiasticism. The fundamental error underlying all other errors on this subject, was the idea of an absent Christ. Notwithstanding the definite assertions of our Lord, "I am with you alway, even unto the end of the world" and "Where two or three are gathered together in my name, there am I in the midst of them"—notwithstanding these reassuring promises and the definite statements of the apostles which represent Christ as the ever-living and ever-acting head of the church, soon after the apostolic period men lost the consciousness of the divine presence and began to think and to act as if Christ were indeed absent and would not return again for thousands of years. The presence of gigantic evils in the world with no apparent available means of redressing them, the dead weight of heathenism, and the disturbing influences of speculative Oriental philosophies impressed upon the conscience of the world a despairing pessimism. In the midst of this trial there was a revival of the Platonic philosophy. The treatise of Plato that made the most profound impression upon the religious thought of the second century was the "Timaeus," wherein the Deity is pictured as withdrawn from the world into a distant heaven separated from all creation because of the evil with which matter is essentially connected. With God withdrawn from the world and Christ absent on a long journey, what was man to do? What was the hope of the world?
Here ecclesiasticism found its real opportunity. Here human authority and government could be and was substituted for that spiritual dominion of Christ which gave life, form, and character to his church in primitive days. Here grew up that conception of the church as identical with the hierarchy whose power and authority was handed down by direct descent from the apostles and without whose priestly mediation there was no hope of salvation. Here was introduced the idea of world-wide centralization of administrative, legislative, and judicial functions in a self-perpetuating human headship. What a contrast! With Christ absent, the church an ark for the saving of the world, the truth a mere deposit made to the church for safe keeping to be handed down like a heirloom from generation to generation, and with a self-perpetuating priestly corporation as master of the destinies of the universe, we are prepared to understand the tyrannical rule of the church of Hildebrand and Innocent III. Traced to its source, this evil system is found to have sprung from that worldly conception of the kingdom of Christ which was substituted for the inconceivably grander conception of its Founder—a kingdom whose dominion is moral and spiritual under the personal supervision of Christ himself in all ages, and which embraces in its membership the entire spiritual brotherhood.