If to-day theists have to be on their guard against debased conceptions of deity, in the plausible garb of an "invisible king," of a finite or suffering God, much more was such caution necessary in the early centuries of the Christian era. Christians who came daily and hourly into contact with polytheistic beliefs and practices had to be very jealous for the concept of impassibility. It represented to them all that was distinctive in the highest region of their Faith. Monophysitism, as we proceed to show, compromised this article of the Faith. Its adherents did not, perhaps, do so intentionally. In fact, the first generation of monophysites maintained that their definition safeguarded the impassibility. It was zeal for the honour of the Son of God that induced them to deny Him all contact with humanity. Their good intentions, however, could not permanently counteract the evil inherent in their system. In later generations the evil came to the surface. Theopaschitism, the doctrine that openly denies the impassibility of the godhead, flourished in the monophysite churches. MONISM ENTAILS A DEBASED CONCEPTION OF DEITY The metaphysical basis of monophysitism made this result inevitable. Extremes meet. Extreme spirituality readily passes into its opposite. It cuts the ground from under its own feet. It soars beyond its powers, and falls into the mire of materialism. Illustrations of this fact can be found in the history of philosophy. The Stoics, for instance, contrived to be both pantheists and materialists. Coming nearer to our own time, we find Hegelianism explained in diametrically opposite ways. After Hegel's death his disciples split into opposing camps; one party maintained that the real was spirit, the other that it was matter. Each party claimed the authority of the master for their view. The divergence is easy to explain. From spiritual monism it is a short step to materialistic monism. For the monist, all is on one level of being. He may by constant effort keep that level high. But gravity will act. We are more prone to degrade God to our level, than to rise to His. The same truth can be put _in abstracto_. Unless the relation between God and the world be preserved as a true relation, the higher term will sooner or later fall to the level of the lower, and be lost in it. This rule holds as well in movements of religious thought. The monophysite strove for a lofty conception of deity but achieved a low one. He undermined the doctrine of impassibility by the very measures he took to secure it.