10. Every person of sound reason, even when not under the influence of religion, perceives that a complex whole would fall to pieces were it not dependent upon some principle of unity, just as man, composed of so many members and viscera, with organs of sensation and of motion, is dependent upon one soul, and the body itself upon one heart. A kingdom also depends upon one king, a house upon one illustrious head, and every office, of which there are many kinds in every kingdom, upon one officer. Against an enemy an army would be of little use without a general in supreme command, with officers under him, each exercising authority according to his rank over the private soldiers. The case would be similar with the Church unless it acknowledged one God, and also with the angelic heaven, which is as the head of the Church on earth, and both the Church and heaven are animated by the Lord as their very soul. For this reason heaven and the Church are called His body; and if they did not acknowledge one God each would become like a life-less corpse, fit only to be cast out and buried.
