Objection 3: Further, "man" implies a suppositum of human nature. But Christ was not always a suppositum of human nature. Therefore this Man began to be.
On the contrary, It is written ( Heb. 13:8 ): "Jesus Christ yesterday and today: and the same for ever."
I answer that, We must not say that "this Man"---pointing to Christ---"began to be," unless we add something. And this for a twofold reason. First, for this proposition is simply false, in the judgment of the Catholic Faith, which affirms that in Christ there is one suppositum and one hypostasis, as also one Person. For according to this, when we say "this Man," pointing to Christ, the eternal suppositum is necessarily meant, with Whose eternity a beginning in time is incompatible. Hence this is false: "This Man began to be." Nor does it matter that to begin to be refers to the human nature, which is signified by this word "man"; because the term placed in the subject is not taken formally so as to signify the nature, but is taken materially so as to signify the suppositum, as was said (A[1], ad 4). Secondly, because even if this proposition were true, it ought not to be made use of without qualification; in order to avoid the heresy of Arius, who, since he pretended that the Person of the Son of God is a creature, and less than the Father, so he maintained that He began to be, saying "there was a time when He was not."
Reply to Objection 1: The words quoted must be qualified, i.e. we must say that the Man Jesus Christ was not, before the world was, "in His humanity."
Reply to Objection 2: With this word "begin" we cannot argue from the lower species to the higher. For it does not follow if "this began to be white," that therefore "it began to be colored." And this because "to begin" implies being now and not heretofore: for it does not follow if "this was not white hitherto" that "therefore it was not colored hitherto." Now, to be simply is higher than to be man. Hence this does not follow: "Christ began to be Man---therefore He began to be."
Reply to Objection 3: This word "Man," as it is taken for Christ, although it signifies the human nature, which began to be, nevertheless signifies the eternal suppositum which did not begin to be. Hence, since it signifies the suppositum when placed in the subject, and refers to the nature when placed in the predicate, therefore this is false: "The Man Christ began to be": but this is true: "Christ began to be Man."
Whether this is true: "Christ as Man is a creature"?
Objection 1: It would seem that this is false: "Christ as Man is a creature," or "began to be." For nothing in Christ is created except the human nature. But this is false: "Christ as Man is the human nature." Therefore this is also false; Christ as Man is a creature.
Objection 2: Further, the predicate is predicated of the term placed in reduplication, rather than of the subject of the proposition; as when I say: "A body as colored is visible," it follows that the colored is visible. But as stated (AA[8],9) we must not absolutely grant that "the Man Christ is a creature"; nor consequently that "Christ as Man is a creature."
Objection 3: Further, whatever is predicated of a man as man is predicated of him "per se" and simply, for "per se" is the same as "inasmuch as itself," as is said Metaph. v, text. 23. But this is false: "Christ as Man is per se and simply a creature." Hence this, too, is false; "Christ as Man is a creature."
On the contrary, Whatever is, is either Creator or creature. But this is false: "Christ as Man is Creator." Therefore this is true: "Christ as Man is a creature."
I answer that, When we say "Christ as Man" this word "man" may be added in the reduplication, either by reason of the suppositum or by reason of the nature. If it be added by reason of the suppositum, since the suppositum of the human nature in Christ is eternal and uncreated, this will be false: "Christ as Man is a creature." But if it be added by reason of the human nature, it is true, since by reason of the human nature or in the human nature, it belongs to Him to be a creature, as was said (A[8]).
It must however be borne in mind that the term covered by the reduplication signifies the nature rather than the suppositum, since it is added as a predicate, which is taken formally, for it is the same to say "Christ as Man" and to say "Christ as He is a Man." Hence this is to be granted rather than denied: "Christ as Man is a creature." But if something further be added whereby [the term covered by the reduplication] is attracted to the suppositum, this proposition is to be denied rather than granted, for instance were one to say: "Christ as 'this' Man is a creature."
Reply to Objection 1: Although Christ is not the human nature, He has human nature. Now the word "creature" is naturally predicated not only of abstract, but also of concrete things; since we say that "manhood is a creature" and that "man is a creature."
Reply to Objection 2: Man as placed in the subject refers to the suppositum---and as placed in the reduplication refers to the nature, as was stated above. And because the nature is created and the suppositum uncreated, therefore, although it is not granted that "this man is a creature," yet it is granted that "Christ as Man is a creature."
Reply to Objection 3: It belongs to every man who is a suppositum of human nature alone to have his being only in human nature. Hence of every such suppositum it follows that if it is a creature as man, it is a creature simply. But Christ is a suppositum not merely of human nature, but also of the Divine Nature, in which He has an uncreated being. Hence it does not follow that, if He is a creature as Man, He is a creature simply.
Whether this is true: "Christ as Man is God"?
Objection 1: It would seem that Christ, as Man, is God. For Christ is God by the grace of union. But Christ, as Man, has the grace of union. Therefore Christ as Man is God.
Objection 2: Further, to forgive sins is proper to God, according to Is. 43:25 : "I am He that blot out thy iniquities for My own sake." But Christ as Man forgives sin, according to Mat. 9:6 : "But that you may know that the Son of Man hath power on earth to forgive sins," etc. Therefore Christ as Man is God.
Objection 3: Further, Christ is not Man in common, but is this particular Man. Now Christ, as this Man, is God, since by "this Man" we signify the eternal suppositum which is God naturally. Therefore Christ as Man is God.
On the contrary, Whatever belongs to Christ as Man belongs to every man. Now, if Christ as Man is God, it follows that every man is God---which is clearly false.
I answer that, This term "man" when placed in the reduplication may be taken in two ways. First as referring to the nature; and in this way it is not true that Christ as Man is God, because the human nature is distinct from the Divine by a difference of nature. Secondly it may be taken as referring to the suppositum; and in this way, since the suppositum of the human nature in Christ is the Person of the Son of God, to Whom it essentially belongs to be God, it is true that Christ, as Man, is God. Nevertheless because the term placed in the reduplication signifies the nature rather than the suppositum, as stated above (A[10]), hence this is to be denied rather than granted: "Christ as Man is God."
Reply to Objection 1: It is not with regard to the same, that a thing moves towards, and that it is, something; for to move belongs to a thing because of its matter or subject---and to be in act belongs to it because of its form. So too it is not with regard to the same, that it belongs to Christ to be ordained to be God by the grace of union, and to be God. For the first belongs to Him in His human nature, and the second, in His Divine Nature. Hence this is true: "Christ as Man has the grace of union"; yet not this: "Christ as Man is God."
Reply to Objection 2: The Son of Man has on earth the power of forgiving sins, not by virtue of the human nature, but by virtue of the Divine Nature, in which Divine Nature resides the power of forgiving sins authoritatively; whereas in the human nature it resides instrumentally and ministerially. Hence Chrysostom expounding this passage says [*Implicitly. Hom. xxx in Matth; cf. St. Thomas, Catena Aurea on Mk. 2:10 ]: "He said pointedly 'on earth to forgive sins,' in order to show that by an indivisible union He united human nature to the power of the Godhead, since although He was made Man, yet He remained the Word of God."
Reply to Objection 3: When we say "this man," the demonstrative pronoun "this" attracts "man" to the suppositum; and hence "Christ as this Man, is God, is a truer proposition than Christ as Man is God."