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| St. Thomas Aquinas Summa Theologica IntraText CT - Text |
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Aquin.: SMT TP Q[17] Out. Para. 1/3 - OF CHRIST'S UNITY OF BEING (TWO ARTICLES) We must now consider what pertains to Christ's unity in common. For, in their proper place, we must consider what pertains to unity and plurality in detail: thus we concluded (Q[9]) that there is not only one knowledge in Christ, and it will be concluded hereafter (Q[35], A[2]) that there is not only one nativity in Christ. Aquin.: SMT TP Q[17] Out. Para. 2/3 Hence we must consider Christ's unity (1) of being; (2) of will; (3) of operation. Aquin.: SMT TP Q[17] Out. Para. 3/3 Under the first head there are two points of inquiry: (1) Whether Christ is one or two? (2) Whether there is only one being in Christ? Aquin.: SMT TP Q[17] A[1] Thes. Para. 1/1 Whether Christ is one or two? Aquin.: SMT TP Q[17] A[1] Obj. 1 Para. 1/1 OBJ 1: It would seem that Christ is not one, but two. For Augustine says (De Trin. i, 7): "Because the form of God took the form of a servant, both are God by reason of God Who assumed, yet both are Man by reason of the man assumed." Now "both" may only be said when there are two. Therefore Christ is two. Aquin.: SMT TP Q[17] A[1] Obj. 2 Para. 1/1 OBJ 2: Further, where there is one thing and another there are two. Now Christ is one thing and another; for Augustine says (Enchiridion xxxv): "Being in the form of God . . . He took the form of a servant . . . being both in one; but He was one of these as Word, and the other as man." Therefore Christ is two. Aquin.: SMT TP Q[17] A[1] Obj. 3 Para. 1/1 OBJ 3: Further, Christ is not only man; for, if He were a mere man, He would not be God. Therefore He is something else than man, and thus in Christ there is one thing and another. Therefore Christ is two. Aquin.: SMT TP Q[17] A[1] Obj. 4 Para. 1/1 OBJ 4: Further, Christ is something that the Father is, and something that the Father is not. Therefore Christ is one thing and another. Therefore Christ is two. Aquin.: SMT TP Q[17] A[1] Obj. 5 Para. 1/1 OBJ 5: Further, as in the mystery of the Trinity there are three Persons in one Nature, so in the mystery of the Incarnation there are two natures in one Person. But on account of the unity of the Nature, notwithstanding the distinction of Person, the Father and Son are one, according to Jn. 10:30: "I and the Father are one." Therefore, notwithstanding the unity of Person, Christ is two on account of the duality of nature. Aquin.: SMT TP Q[17] A[1] Obj. 6 Para. 1/1 OBJ 6: Further, the Philosopher says (Phys. iii, text. 18) that "one" and "two" are predicated denominatively. Now Christ has a duality of nature. Therefore Christ is two. Aquin.: SMT TP Q[17] A[1] Obj. 7 Para. 1/1 OBJ 7: Further, as accidental form makes a thing otherwise [alterum] so does substantial form make another thing [aliud] as Porphyry says (Praedic.). Now in Christ there are two substantial natures, the human and the Divine. Therefore Christ is one thing and another. Therefore Christ is two. Aquin.: SMT TP Q[17] A[1] OTC Para. 1/1 On the contrary, Boethius says (De Duab. Nat.): "Whatever is, inasmuch as it is, is one." But we confess that Christ is. Therefore Christ is one. Aquin.: SMT TP Q[17] A[1] Body Para. 1/2 I answer that, Nature, considered in itself, as it is used in the abstract, cannot truly be predicated of the suppositum or person, except in God, in Whom "what it is" and "whereby it is" do not differ, as stated in the FP, Q[29], A[4], ad 1. But in Christ, since there are two natures, viz. the Divine and the human, one of them, viz. the Divine, may be predicated of Him both in the abstract and in the concrete, for we say that the Son of God, Who is signified by the word Christ, is the Divine Nature and is God. But the human nature cannot be predicated of Christ in the abstract, but only in the concrete, i.e. as it is signified by the suppositum. For we cannot truly say that "Christ is human nature," because human nature is not naturally predicated of its suppositum. But we say that Christ is a man, even as Christ is God. Now God signifies one having the Godhead, and man signifies one having manhood. Yet one having manhood is differently signified by the word "man" and by the word "Jesus" or "Peter." For this word "man" implies one having manhood indistinctly, even as the word "God" implies indistinctly one having the Godhead; but the word "Peter" or "Jesus" implies one having manhood distinctly, i.e. with its determinate individual properties, as "Son of God" implies one having the Godhead under a determinate personal property. Now the dual number is placed in Christ with regard to the natures. Hence, if both the natures were predicated in the abstract of Christ, it would follow that Christ is two. But because the two natures are not predicated of Christ, except as they are signified in the suppositum, it must be by reason of the suppositum that "one" or "two" be predicated of Christ. Aquin.: SMT TP Q[17] A[1] Body Para. 2/2 Now some placed two supposita in Christ, and one Person, which, in their opinion, would seem to be the suppositum completed with its final completion. Hence, since they placed two supposita in Christ, they said that God is two, in the neuter. But because they asserted one Person, they said that Christ is one, in the masculine, for the neuter gender signifies something unformed and imperfect, whereas the masculine signifies something formed and perfect. on the other hand, the Nestorians, who asserted two Persons in Christ, said that Christ is two not only in the neuter, but also in the masculine. But since we maintain one person and one suppositum in Christ, as is clear from Q[2], AA[2],3, it follows that we say that Christ is one not merely in the masculine, but also in the neuter. Aquin.: SMT TP Q[17] A[1] R.O. 1 Para. 1/1 Reply OBJ 1: This saying of Augustine is not to be taken as if "both" referred to the predicate, so as to mean that Christ is both; but it refers to the subject. And thus "both" does not stand for two supposita, but for two words signifying two natures in the concrete. For I can say that "both, viz. God and Man, are God" on account of God Who assumes; and "both, viz. God and Man," are Man on account of the man assumed. Aquin.: SMT TP Q[17] A[1] R.O. 2 Para. 1/1 Reply OBJ 2: When it is said that "Christ is one thing and another," 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 God and man, the Son of God 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 Nazianzen 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." Aquin.: SMT TP Q[17] A[1] R.O. 3 Para. 1/1 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." Aquin.: SMT TP Q[17] A[1] R.O. 4 Para. 1/1 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 God, does not reckon numerically with the Divine Nature, which is predicated of the Father and Son. Aquin.: SMT TP Q[17] A[1] R.O. 5 Para. 1/1 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. Aquin.: SMT TP Q[17] A[1] R.O. 6 Para. 1/1 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. Aquin.: SMT TP Q[17] A[1] R.O. 7 Para. 1/1 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. Aquin.: SMT TP Q[17] A[2] Thes. Para. 1/1 Whether there is only one being in Christ? Aquin.: SMT TP Q[17] A[2] Obj. 1 Para. 1/1 OBJ 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. Aquin.: SMT TP Q[17] A[2] Obj. 2 Para. 1/1 OBJ 2: Further, the being of the Son of God 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. Aquin.: SMT TP Q[17] A[2] Obj. 3 Para. 1/1 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. Aquin.: SMT TP Q[17] A[2] Obj. 4 Para. 1/1 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. Aquin.: SMT TP Q[17] A[2] OTC Para. 1/1 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. Aquin.: SMT TP Q[17] A[2] Body Para. 1/2 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. Aquin.: SMT TP Q[17] A[2] Body Para. 2/2 If, therefore, the human nature accrued to the Son of God, not hypostatically or personally, but accidentally, as some maintained, it would be necessary to assert two beings in Christ - one, inasmuch as He is God - 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 constituted 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 God, 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. Aquin.: SMT TP Q[17] A[2] R.O. 1 Para. 1/1 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. Aquin.: SMT TP Q[17] A[2] R.O. 2 Para. 1/1 Reply OBJ 2: The eternal being of the Son of God, which is the Divine Nature, becomes the being of man, inasmuch as the human nature is assumed by the Son of God to unity of Person. Aquin.: SMT TP Q[17] A[2] R.O. 3 Para. 1/1 Reply OBJ 3: As was said in the FP, Q[50], A[2], ad 3; FP, 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. Aquin.: SMT TP Q[17] A[2] R.O. 4 Para. 1/1 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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