We leave here the area of theology and come to that of Christology. We have exhibited the monophysite errors with respect to the doctrine of primal deity; we now proceed to analyse their views with respect to the incarnate Christ. The former subject leads the thinker into deep water; the layman is out of his depth in it; so it does not furnish material for a popular controversy. It is otherwise with the latter subject. Here the issue is narrowed to a point. It becomes a question of fact, namely, "Was Christ a real man?" The question and most of the answers given to it are readily intelligible, and they naturally gave rise to heated controversy. Theopaschitism is, as we have shown, a tendency inherent in the heresy, but one slow to come to the surface, and one easily counter-acted and suppressed by the personal piety of the monophysite. Its docetism, the assertion of the unreality of Christ's human nature, lies on the surface. No amount of personal piety can neutralise it. It has had, and still has, a crippling effect on the faith of devout Christians. Even where it is not carried to the length of formal heresy, it spreads a haze of unreality over the gospel story, and dulls the edge of belief.
The second count of Leo's charge against the monophysites was, it will be remembered, that their presentation of Christ made Him "homo falsus." Under this heading "homo falsus" may be classed a wide group of erroneous tenets, ranging from the crudities of early docetism to the subtleties of Apollinarianism. We propose to sketch those of major importance. No attempt will be made to take them in their historical order or historical setting. Further, it is not implied that they all formed part of the official doctrine of the monophysite church. The standard of belief in that communion was constantly varying, and the history of its dogma would need a work to itself. We shall deal with those Christological errors, which, whether part of the official monophysite creed or not, are logical results of the monophysite formula.
Unreality may be predicated of Christ's human nature as a whole, or in respect of its parts. Consubstantiality with humanity may be denied of the whole of his human nature; or deficiency in one or other of the essential constituents of human nature may be alleged. We shall deal first with those errors that concern the entire nature, coming later to the errors in respect of one or more of its several parts.
Suspicion of the reality of Christ's human nature as a whole is characteristic of all monophysite thought. This suspicion, not always formulated or expressed, is everywhere present. If the monophysites admitted the fact of His true manhood, they denied or neglected the religious value of that fact. Their spurious spirituality rebelled against a dogma which seemed to tie the infinite down to a point in history. The fact that the Son of God lived a perfect human life contained no inspiration for them. They idealised the incarnation. It was not for them a historical event. This is a corollary to the proposition, maintained by their great champion, Philoxenus, that "no addition to His person took place." It is tantamount to saying that the union of divine and human in Christ is purely conceptual. When the monophysite faced the question, "What change in Christ did the incarnation effect?" his formula constrained him to reply, "It made no change." The deity of the person was not denied. The pre-existent Logos and the Christ who walked in Galilee were admittedly one and the same. The second person of the trinity and Jesus of Nazareth were one personality. If Bethlehem made no change in that personality, it was purposeless, and the import of the incarnation disappears.
THE MONOPHYSITE THEORY OF A COMPOSITION OF NATURES
For the consistent monophysites, then, the human nature, as a psychic entity with peculiar properties, did not survive the incarnation. They did, however, allow it a verbal reality. They admitted a composition of natures, and this composition provided for them whatever degree of reality the incarnation possessed. On this point their Christology passed through several stages of development, the later stages showing progressive improvement on the earlier. They distinguished three senses of the word "composition." First, they said, it might mean "absorption," as when a drop of water is absorbed in a jar of wine. Second, it might imply the transmutation of constituent particles, as when a third unlike thing is formed from two. Thirdly, there is composition when, from the association of two whole and entire things, a third whole and entire compound thing is formed without loss to the components. They illustrated the third mode of composition by the union in man of soul and body. The pre-Eutychian monophysites regarded the hypostatic union as a composition in the first sense of the word. They spoke of Christ's human nature as absorbed in the divine, as is "a drop of vinegar in the ocean." Eutyches adopted the term in its second sense. He taught that the Word became flesh[[3]] "as the atmosphere assumes bodily form and becomes rain or snow under the influence of the wind, and as water becomes ice by reason of the cold air." Philoxenus in a later generation saw that both these positions were wrong and the similes misleading. He taught a hypostatic union totally devoid of confusion or loss or commutation of the elements of the two natures. To illustrate his meaning he used the simile supplied by the "Athanasian" creed, "as the reasonable soul and flesh is one man, so God and Man is one Christ." This position is a vast improvement on that of the original monophysites. It was ground gained to secure the admission that in any sense Christ was very man. But the monophysites never learned the true manner of the union, namely, that Christ was "one; not by conversion of the Godhead into flesh, but by taking of the Manhood into God; one altogether; not by confusion of Substance but by unity of Person."
Read in this connection the assertion that God and man is one Christ, "as the reasonable soul and flesh is one man," is orthodox; read apart from this context, it is ambiguous. If the simile be kept as a simile, as a mere suggestion or hint as to how, in general, two may compose one and yet remain two, then no exception can be taken to it. If, however, the clause be interpreted as a proportion sum, assigning corresponding values to the different terms, then it savours strongly of Apollinarianism. Most monophysites, like many moderns, probably understood it in the mathematical sense. Christ, they argued, was God and man, just as man is rational soul and body; the terms are in proportion; therefore the divine nature was the rational soul, and the human nature was the body. They forgot that the free act of the whole divine person in assuming man underlies the union and makes it efficacious; they gave sárx; the narrow meaning of sôma, they set before themselves the picture, not of the infinite robing in the finite, but of the union of mind and matter. Consequently they habitually spoke of the Logos, as assuming, not man or a human nature, but a body.
Such in its varying phases was the monophysite doctrine of composition. At its worst, it contained a direct denial of the real humanity of Christ. At its best, it falls far short of the catholic doctrine of His real, perfect and complete humanity. The permanent assumption of human nature into the transcendent personality had no meaning for the heretic party. If it had taken place, it was, they thought, merely momentary, with no after-effects, the passing of a summer cloud across the face of the sun.
We have considered the monophysites' view of Christ's human nature, regarded as an integral psychic entity. It is evident that they either undervalued it or denied its existence. The more consistent thinkers of their party maintained that the incarnation had made no difference in the being of Christ, and that therefore His human nature had no objective reality. Those who shrank from carrying the doctrine to that length conceded to the orthodox that the incarnation had to some extent modified the being of Christ, that its net result was a composition. Further analysis showed that this concession was rendered nugatory; that in whatever sense the word "composition" was taken, it was inadequate to express the hypostatic union; that the composition proved in its first significance illusory, in its second, hybridous, in its third, Apollinarianist. We pass on now to review the human nature in its constituent parts, and it will be seen that the heretical formula undermines faith in respect of each several part.