THIRD ARTICLE: WHETHER THE NATURE ABSTRACTED FROM THE PERSONALITY CAN ASSUME

State of the question. The meaning of the title is: Can the divine nature assume a nature different from its own, if by God we understand, in the way the pagans and Jews imagine Him to exist, without personal relations and without persons, as our Catholic faith acknowledges to be in Him?

It seems that the divine nature cannot so assume; because, as stated above, it befits the nature to assume because of the person, and because the union took place not in the nature, but in the person.

Reply. It is affirmed, nevertheless, that the divine nature can assume our nature.

Proof. It is taken from the counterargument of this article, from the argumentative part and from the reply to the second objection. The reasons given are: 1. In this hypothesis, God's omnipotence, by which the Incarnation took place, would remain. 2. There would also remain the one personality of God as the Jews understand, which could be the term of the assumption.[664]

In God, the Deity and God are identical, or in God whereby it is and what is are the same; for God's essence is His self-existing being.[665]

First doubt. Is it something absolute or something relative that immediately terminates the human nature of Christ?

Reply. It is something relative that immediately and proximately terminates Christ's human nature, namely, the personality of the Word, which is constituted by relative subsistence, or by the subsisting relation of sonship, as explained in the treatise on the Trinity. The divine relations are subsisting relations, inasmuch as their inexistence (esse in) is substantial and not accidental as in created predicamental relations, for example, in created paternity and created sonship.[666]

Proof. The Eleventh Council of Toledo in its profession of faith says: "Neither the Holy Spirit nor God the Father, but only the person of the Son took flesh."[667] But if the Word were to terminate the human nature formally and proximately by a common and absolute subsistence, then the Father and the Holy Spirit equally with the Son, would have been incarnate.

Second doubt. Could the triune God assume the human nature primarily on account of absolute subsistence, and only secondarily on account of relative subsistences?

Reply. The triune God could have assumed absolutely our human nature, because this absolute subsistence "could be the principle and term of this assumption," as stated by St. Thomas in this article.[668] For the reason why God subsists in His own nature, can be the reason why He subsists in a different nature. But absolute and common subsistence could be the reason for His subsistence in a different nature.

Third doubt. What is the difference between the incommunicability of absolute subsistence and of relative subsistence?

Reply. The first incommunicability is not within the Trinity, but only external to it. The second incommunicability is both internal and external to the Trinity. Common and absolute subsistence does not formally attribute incommunicability internally to the Deity, for the Deity is communicated to the Son and to the Holy Ghost. On the contrary, the personality of the Father is not communicated to the Son. But God by reason of His common and absolute subsistence is incommunicable externally, in this sense that He is by Himself separately existing, really and essentially distinct from the world. St. Thomas says: "A person is said to be incommunicable inasmuch as it cannot be predicated of several supposita."[669]

What the philosopher means by saying that God is personal, is that He is the separately existing being, distinct from every creature, intelligent and free and so is externally incommunicable. When theologians speak of the three divine persons, what they first of all have in mind is internal incommunicability. Thus the Father communicates the whole divine nature to the Son, but not His personality, which is the subsistent relation of paternity in opposition to filiation.[670]

Objection. The Fathers and councils never mention this absolute subsistence, which seems to have been discovered by Cajetan.

Reply. They never referred to it because there was no occasion of doing so to refute errors against it such as Nestorianism and Monophysitism, which had not yet arisen. It sufficed to exclude union in the nature and affirm the union in the person of the Word, as recorded in revelation. Absolute subsistence was not discovered by Cajetan, for St. Thomas explicitly refers to it in this third article.