Summa Theologica

Chapter 677

this saying is to be explained in this sense--"having this nature and another." And it is in this way that Augustine explains it (Contra Felic. xi), where, after saying, "In the mediator of G.o.d and man, the Son of G.o.d is one thing, and the Son of Man another," he adds: "I say another thing by reason of the difference of substance, and not another thing by reason of the unity of person." Hence Gregory n.a.z.ianzen says (Ep. ad Chelid. ci): "If we must speak briefly, that of which the Saviour is, is one thing and another; thus the invisible is not the same as the visible; and what is without time is not the same as what is in time. Yet they are not one and another: far from it; for both these are one."

Reply Obj. 3: This is false, "Christ is only man"; because it does not exclude another suppositum, but another nature, since terms placed in the predicate are taken formally. But if anything is added whereby it is drawn to the suppositum, it would be a true proposition--for instance, "Christ is only that which is man."

Nevertheless, it would not follow that He is "any other thing than man," because "another thing," inasmuch as it refers to a diversity of substance, properly refers to the suppositum, even as all relative things bearing a personal relation. But it does follow: "Therefore He has another nature."

Reply Obj. 4: When it is said, "Christ is something that the Father is"; "something" signifies the Divine Nature, which is predicated even in the abstract of the Father and Son. But when it is said: "Christ is something that is not the Father"; "something" signifies, not the human nature as it is in the abstract, but as it is in the concrete; not, indeed, in a distinct, but in an indistinct suppositum, i.e. inasmuch as it underlies the nature and not the individuating properties. Hence it does not follow that Christ is one thing and another, or that He is two, since the suppositum of the human nature in Christ, which is the Person of the Son of G.o.d, does not reckon numerically with the Divine Nature, which is predicated of the Father and Son.

Reply Obj. 5: In the mystery of the Divine Trinity the Divine Nature is predicated, even in the abstract of the three Persons; hence it may be said simply that the three Persons are one. But in the mystery of the Incarnation both natures are not predicated in the abstract of Christ; hence it cannot be said simply that Christ is two.

Reply Obj. 6: Two signifies what has duality, not in another, but in the same thing of which "two" is predicated. Now what is predicated is said of the suppositum, which is implied by the word "Christ."

Hence, although Christ has duality of nature, yet, because He has not duality of suppositum, it cannot be said that Christ is two.

Reply Obj. 7: Otherwise implies diversity of accident. Hence diversity of accident suffices for anything to be called "otherwise"

simply. But "another thing" implies diversity of substance. Now not merely the nature, but also the suppositum is said to be a substance, as is said _Metaph._ v, text. 15. Hence diversity of nature does not suffice for anything to be called "another thing" simply, unless there is diversity of suppositum. But diversity of nature makes "another thing" relatively, i.e. in nature, if there is no diversity of suppositum.

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SECOND ARTICLE [III, Q. 17, Art. 2]

Whether There Is Only One Being in Christ?

Objection 1: It would seem that in Christ there is not merely one being, but two. For Damascene says (De Fide Orth. iii, 13) that whatever follows the nature is doubled in Christ. But being follows the nature, for being is from the form. Hence in Christ there are two beings.

Obj. 2: Further, the being of the Son of G.o.d is the Divine Nature itself, and is eternal: whereas the being of the Man Christ is not the Divine Nature, but is a temporal being. Therefore there is not only one being in Christ.

Obj. 3: Further, in the Trinity, although there are three Persons, yet on account of the unity of nature there is only one being. But in Christ there are two natures, though there is one Person. Therefore in Christ there is not only one being.

Obj. 4: Further, in Christ the soul gives some being to the body, since it is its form. But it does not give the Divine being, since this is uncreated. Therefore in Christ there is another being besides the Divine being; and thus in Christ there is not only one being.

_On the contrary,_ Everything is said to be a being, inasmuch as it is one, for one and being are convertible. Therefore, if there were two beings in Christ, and not one only, Christ would be two, and not one.

_I answer that,_ Because in Christ there are two natures and one hypostasis, it follows that things belonging to the nature in Christ must be two; and that those belonging to the hypostasis in Christ must be only one. Now being pertains both to the nature and to the hypostasis; to the hypostasis as to that which has being--and to the nature as to that whereby it has being. For nature is taken after the manner of a form, which is said to be a being because something is by it; as by whiteness a thing is white, and by manhood a thing is man.

Now it must be borne in mind that if there is a form or nature which does not pertain to the personal being of the subsisting hypostasis, this being is not said to belong to the person simply, but relatively; as to be white is the being of Socrates, not as he is Socrates, but inasmuch as he is white. And there is no reason why this being should not be multiplied in one hypostasis or person; for the being whereby Socrates is white is distinct from the being whereby he is a musician. But the being which belongs to the very hypostasis or person in itself cannot possibly be multiplied in one hypostasis or person, since it is impossible that there should not be one being for one thing.

If, therefore, the human nature accrued to the Son of G.o.d, not hypostatically or personally, but accidentally, as some maintained, it would be necessary to a.s.sert two beings in Christ--one, inasmuch as He is G.o.d--the other, inasmuch as He is Man; even as in Socrates we place one being inasmuch as he is white, and another inasmuch as he is a man, since "being white" does not pertain to the personal being of Socrates. But being possessed of a head, being corporeal, being animated--all these pertain to the one person of Socrates, and hence there arises from these only the one being of Socrates. And if it so happened that after the person of Socrates was const.i.tuted there accrued to him hands or feet or eyes, as happened to him who was born blind, no new being would be thereby added to Socrates, but only a relation to these, i.e. inasmuch as he would be said to be, not only with reference to what he had previously, but also with reference to what accrued to him afterwards. And thus, since the human nature is united to the Son of G.o.d, hypostatically or personally as was said above (Q. 2, AA. 5, 6), and not accidentally, it follows that by the human nature there accrued to Him no new personal being, but only a new relation of the pre-existing personal being to the human nature, in such a way that the Person is said to subsist not merely in the Divine, but also in the human nature.

Reply Obj. 1: Being is consequent upon nature, not as upon that which has being, but as upon that whereby a thing is: whereas it is consequent upon person or hypostasis, as upon that which has being.

Hence it has unity from the unity of hypostasis, rather than duality from the duality of the nature.

Reply Obj. 2: The eternal being of the Son of G.o.d, which is the Divine Nature, becomes the being of man, inasmuch as the human nature is a.s.sumed by the Son of G.o.d to unity of Person.

Reply Obj. 3: As was said in the First Part (Q. 50, A. 2, ad 3; Q.

75, A. 5, ad 4), since the Divine Person is the same as the Nature, there is no distinction in the Divine Persons between the being of the Person and the being of the Nature, and, consequently, the three Persons have only one being. But they would have a triple being if the being of the Person were distinct in them from the being of the Nature.

Reply Obj. 4: In Christ the soul gives being to the body, inasmuch as it makes it actually animated, which is to give it the complement of its nature and species. But if we consider the body perfected by the soul, without the hypostasis having both--this whole, composed of soul and body, as signified by the word "humanity," does not signify _what is,_ but _whereby it is._ Hence being belongs to the subsisting person, inasmuch as it has a relation to such a nature, and of this relation the soul is the cause, inasmuch as it perfects human nature by informing the body.

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QUESTION 18

OF CHRIST"S UNITY OF WILL (In Six Articles)

We must now consider unity as regards the will; and under this head there are six points of inquiry:

(1) Whether the Divine will and the human are distinct in Christ?

(2) Whether in Christ"s human nature the will of sensuality is distinct from the will of reason?

(3) Whether as regards the reason there were several wills in Christ?

(4) Whether there was free-will in Christ?

(5) Whether Christ"s human will was always conformed to the Divine will in the thing willed?

(6) Whether there was any contrariety of wills in Christ?

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FIRST ARTICLE [III, Q. 18, Art. 1]

Whether There Are Two Wills in Christ?

Objection 1: It would seem that in Christ there are not two wills, one Divine, the other human. For the will is the first mover and first commander in whoever wills. But in Christ the first mover and commander was the Divine will, since in Christ everything human was moved by the Divine will. Hence it seems that in Christ there was only one will, viz. the Divine.

Obj. 2: Further, an instrument is not moved by its own will but by the will of its mover. Now the human nature of Christ was the instrument of His G.o.dhead. Hence the human nature of Christ was not moved by its own will, but by the Divine will.

Obj. 3: Further, that alone is multiplied in Christ which belongs to the nature. But the will does not seem to pertain to nature: for natural things are of necessity; whereas what is voluntary is not of necessity. Therefore there is but one will in Christ.

Obj. 4: Further, Damascene says (De Fide Orth. iii, 14) that "to will in this or that way belongs not to our nature but to our intellect,"

i.e. our personal intellect. But every will is this or that will, since there is nothing in a genus which is not at the same time in some one of its species. Therefore all will belongs to the person.

But in Christ there was and is but one person. Therefore in Christ there is only one will.

_On the contrary,_ our Lord says (Luke 22:42): "Father, if Thou wilt, remove this chalice from Me. But yet not My will but Thine be done."

And Ambrose, quoting this to the Emperor Gratian (De Fide ii, 7) says: "As He a.s.sumed my will, He a.s.sumed my sorrow;" and on Luke 22:42 he says: "His will, He refers to the Man--the Father"s, to the G.o.dhead. For the will of man is temporal, and the will of the G.o.dhead eternal."

_I answer that,_ Some placed only one will in Christ; but they seem to have had different motives for holding this. For Apollinaris did not hold an intellectual soul in Christ, but maintained that the Word was in place of the soul, or even in place of the intellect. Hence since "the will is in the reason," as the Philosopher says (De Anima iii, 9), it followed that in Christ there was no human will; and thus there was only one will in Him. So, too, Eutyches and all who held one composite nature in Christ were forced to place one will in Him.

Nestorius, too, who maintained that the union of G.o.d and man was one of affection and will, held only one will in Christ. But later on, Macarius, Patriarch of Antioch, Cyrus of Alexandria, and Sergius of Constantinople and some of their followers, held that there is one will in Christ, although they held that in Christ there are two natures united in a hypostasis; because they believed that Christ"s human nature never moved with its own motion, but only inasmuch as it was moved by the G.o.dhead, as is plain from the synodical letter of Pope Agatho [*Third Council of Constantinople, Act. 4].

And hence in the sixth Council held at Constantinople [*Act. 18] it was decreed that it must be said that there are two wills in Christ, in the following pa.s.sage: "In accordance with what the Prophets of old taught us concerning Christ, and as He taught us Himself, and the Symbol of the Holy Fathers has handed down to us, we confess two natural wills in Him and two natural operations." And this much it was necessary to say. For it is manifest that the Son of G.o.d a.s.sumed a perfect human nature, as was shown above (Q. 5; Q. 9, A. 1). Now the will pertains to the perfection of human nature, being one of its natural powers, even as the intellect, as was stated in the First Part (QQ. 79, 80). Hence we must say that the Son of G.o.d a.s.sumed a human will, together with human nature. Now by the a.s.sumption of human nature the Son of G.o.d suffered no diminution of what pertains to His Divine Nature, to which it belongs to have a will, as was said in the First Part (Q. 19, A. 1). Hence it must be said that there are two wills in Christ, i.e. one human, the other Divine.

Reply Obj. 1: Whatever was in the human nature of Christ was moved at the bidding of the Divine will; yet it does not follow that in Christ there was no movement of the will proper to human nature, for the good wills of other saints are moved by G.o.d"s will, "Who worketh" in them "both to will and to accomplish," as is written Phil. 2:13. For although the will cannot be inwardly moved by any creature, yet it can be moved inwardly by G.o.d, as was said in the First Part (Q. 105, A. 4). And thus, too, Christ by His human will followed the Divine will according to Ps. 39:9; "That I should do Thy will, O my G.o.d, I have desired it." Hence Augustine says (Contra Maxim. ii, 20): "Where the Son says to the Father, "Not what I will, but what Thou willest,"

what do you gain by adding your own words and saying "He shows that His will was truly subject to His Father," as if we denied that man"s will ought to be subject to G.o.d"s will?"

Reply Obj. 2: It is proper to an instrument to be moved by the princ.i.p.al agent, yet diversely, according to the property of its nature. For an inanimate instrument, as an axe or a saw, is moved by the craftsman with only a corporeal movement; but an instrument animated by a sensitive soul is moved by the sensitive appet.i.te, as a horse by its rider; and an instrument animated with a rational soul is moved by its will, as by the command of his lord the servant is moved to act, the servant being like an animate instrument, as the Philosopher says (Polit. i, 2, 4; _Ethic._ viii, 11). And hence it was in this manner that the human nature of Christ was the instrument of the G.o.dhead, and was moved by its own will.

Reply Obj. 3: The power of the will is natural, and necessarily follows upon the nature; but the movement or act of this power--which is also called will--is sometimes natural and necessary, e.g. with respect to beat.i.tude; and sometimes springs from free-will and is neither necessary nor natural, as is plain from what has been stated in the Second Part (I-II, Q. 10, AA. 1, 2) [*Cf. I, Q. 82, A. 2]. And yet even reason itself, which is the principle of this movement, is natural. Hence besides the Divine will it is necessary to place in Christ a human will, not merely as a natural power, or a natural movement, but even as a rational movement.

Reply Obj. 4: When we say "to will in a certain way," we signify a determinate mode of willing. Now a determinate mode regards the thing of which it is the mode. Hence since the will pertains to the nature, "to will in a certain way" belongs to the nature, not indeed considered absolutely, but as it is in the hypostasis. Hence the human will of Christ had a determinate mode from the fact of being in a Divine hypostasis, i.e. it was always moved in accordance with the bidding of the Divine will.

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SECOND ARTICLE [III, Q. 18, Art. 2]

Whether in Christ There Was a Will of Sensuality Besides the Will of Reason?

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