FIRST ARTICLE: WHETHER IN CHRIST THERE IS ONLY ONE OPERATION OF THE GODHEAD AND MANHOOD

The principal conclusion of this article is that there are two operations in Christ, one of the human nature, the other of the divine nature. It is of faith, decided in the Third Council of Constantinople, against Monothelitism as quoted in the body of this article.[1467]

Theological proof. It is evident, for operations follow forms, which are principles of action. But in Christ there are two principles of action, namely, two distinct natures and two wills. Therefore in Christ there are diverse operations.

Confirmation. The Scripture says that Christ was obedient and merited. But He could neither obey nor merit by the divine will. Therefore He obeyed and merited by the human will that was in conformity with the divine will. Manifestly obedience and merit presuppose subordination of the lower will to the higher will.

Second conclusion. Nevertheless the divine nature operates by means of the human nature, using it as an instrument. Thus Christ as man in His ministry worked miracles, and the principal cause of these can be only God.[1468]

Reply to fifth objection. It is pointed out that the two operations concurred even in these miracles; there was, for example, in the healing of the leper the proper operation of Christ's human nature, namely, contact with the body of the leper, and the divine operation, namely, the miraculous healing of the leper.

Corollary. We distinguish between three kinds of operations in Christ. Some are merely divine, such as creation and conservation. Some are merely human, namely, those which Christ performed by the power of His own human nature, such as eating, drinking, weeping, deliberating. Some are mixed, namely, those to which each nature contributes, the divine as the principal cause, the human as the instrumental cause, such as the raising of Lazarus, sight given to the man born blind, and others of this nature. The strictly miraculous operation, for example, the raising of the dead to life, is indeed one operation, which depends on God as the principal cause and on the human nature of Christ as the instrument in conjunction with it. But even in such a case there is at the same time the operation that belongs properly to the instrument, which does not exceed its own power, such as shouting, touching, speaking. This operation disposes for the effect of the principal agent, either producing its own disposition to be accomplished in the subject, as the pen contributes the ink, or acting only in a dispositive way, as the trumpet transmits the sound in a certain direction rather than in another.

What is the theandric or God-man operation?

St. Thomas explains this term in his reply to the first objection where he says: "Dionysius places in Christ a theandric, that is a God-man-like or divino-human operation not by any confusion of the operations or powers of both natures, but inasmuch as His divine operation employs the human, and his human operation shares in the power of the divine as when He healed the leper with a touch." Then there are two subordinated operations, namely, the touch that need not be miraculous, and the actual miraculous healing, which proceeds from God as the principal cause and from Christ's human nature as the instrumental cause. Yet it must furthermore be remarked that the very action alone of Christ's human will is usually called in another sense theandric on account of the infinite value it derives from the divine suppositum that is the agent which operates. Thus it is said that Christ's meritorious and satisfactory acts were theandric in this sense, that they proceeded both from His human will and from His divine personality. And herein consists the essence of the very mystery of Redemption, in that the infinite value of these theandric acts of Christ, which are called theandric because of the suppositum or divine person of the Word incarnate, who operates through Christ's most holy soul.