in the genus of principle taken personally in God. Or that there be understood in the term "unbegotten" that He is not in any way derived from another; and not only that He is not from another by way only of generation. In this sense the term "unbegotten" does not belong at all to the Holy Ghost, Who is from another by procession, as a subsisting person; nor does it belong to the divine essence, of which it may be said that it is in the Son or in the Holy Ghost from another---namely, from the Father.
Reply to Objection 3: According to Damascene (De Fide Orth. ii, 9), "unbegotten" in one sense signifies the same as "uncreated"; and thus it applies to the substance, for thereby does the created substance differ from the uncreated. In another sense it signifies what is not begotten, and in this sense it is a relative term; just as negation is reduced to the genus of affirmation, as "not man" is reduced to the genus of substance, and "not white" to the genus of quality. Hence, since "begotten" implies relation in God, "unbegotten" belongs also to relation. Thus it does not follow that the Father unbegotten is substantially distinguished from the Son begotten; but only by relation; that is, as the relation of Son is denied of the Father.
Reply to Objection 4: In every genus there must be something first; so in the divine nature there must be some one principle which is not from another, and which we call "unbegotten." To admit two innascibles is to suppose the existence of two Gods, and two divine natures. Hence Hilary says (De Synod.): "As there is one God, so there cannot be two innascibles." And this especially because, did two innascibles exist, one would not be from the other, and they would not be distinguished by relative opposition: therefore they would be distinguished from each other by diversity of nature.
Reply to Objection 5: The property of the Father, whereby He is not from another, is more clearly signified by the removal of the nativity of the Son, than by the removal of the procession of the Holy Ghost; both because the procession of the Holy Ghost has no special name, as stated above ( Question [27], Article [4], ad 3), and because also in the order of nature it presupposes the generation of the Son. Hence, it being denied of the Father that He is begotten, although He is the principle of generation, it follows, as a consequence, that He does not proceed by the procession of the Holy Ghost, because the Holy Ghost is not the principle of generation, but proceeds from the person begotten.
OF THE PERSON OF THE SON (THREE ARTICLES)
We next consider the person of the Son. Three names are attributed to the Son---namely, "Son," "Word," and "Image." The idea of Son is gathered from the idea of Father. Hence it remains for us to consider Word and Image.
Concerning Word there are three points of inquiry:
(1) Whether Word is an essential term in God, or a personal term?
(2) Whether it is the proper name of the Son?
(3) Whether in the name of Word is expressed relation to creatures?
Whether Word in God is a personal name?
Objection 1: It would seem that Word in God is not a personal name. For personal names are applied to God in a proper sense, as Father and Son. But Word is applied to God metaphorically, as Origen says on (Jn. 1:1), "In the beginning was the Word." Therefore Word is not a personal name in God.
Objection 2: Further, according to Augustine (De Trin. ix, 10), "The Word is knowledge with love;" and according to Anselm (Monol. lx), "To speak is to the Supreme Spirit nothing but to see by thought." But knowledge and thought, and sight, are essential terms in God. Therefore Word is not a personal term in God.
Objection 3: Further, it is essential to word to be spoken. But, according to Anselm (Monol. lix), as the Father is intelligent, the Son is intelligent, and the Holy Ghost is intelligent, so the Father speaks, the Son speaks, and the Holy Ghost speaks; and likewise, each one of them is spoken. Therefore, the name Word is used as an essential term in God, and not in a personal sense.
Objection 4: Further, no divine person is made. But the Word of God is something made. For it is said, "Fire, hail, snow, ice, the storms which do His Word" (Ps. 148:8). Therefore the Word is not a personal name in God.
On the contrary, Augustine says (De Trin. vii, 11): "As the Son is related to the Father, so also is the Word to Him Whose Word He is." But the Son is a personal name, since it is said relatively. Therefore so also is Word.
I answer that, The name of Word in God, if taken in its proper sense, is a personal name, and in no way an essential name.
To see how this is true, we must know that our own word taken in its proper sense has a threefold meaning; while in a fourth sense it is taken improperly or figuratively. The clearest and most common sense is when it is said of the word spoken by the voice; and this proceeds from an interior source as regards two things found in the exterior word---that is, the vocal sound itself, and the signification of the sound. For, according to the Philosopher (Peri Herm. i) vocal sound signifies the concept of the intellect. Again the vocal sound proceeds from the signification or the imagination, as stated in De Anima ii, text 90. The vocal sound, which has no signification cannot be called a word: wherefore the exterior vocal sound is called a word from the fact the it signifies the interior concept of the mind. Therefore it follows that, first and chiefly, the interior concept of the mind is called a word; secondarily, the vocal sound itself, signifying the interior concept, is so called; and thirdly, the imagination of the vocal sound is called a word. Damascene mentions these three kinds of words (De Fide Orth. i, 17), saying that "word" is called "the natural movement of the intellect, whereby it is moved, and understands, and thinks, as light and splendor;" which is the first kind. "Again," he says, "the word is what is not pronounced by a vocal word, but is uttered in the heart;" which is the third kind. "Again," also, "the word is the angel"---that is, the messenger "of intelligence;" which is the second kind. Word is also used in a fourth way figuratively for that which is signified or effected by a word; thus we are wont to say, "this is the word I have said," or "which the king has commanded," alluding to some deed signified by the word either by way of assertion or of command.
Now word is taken strictly in God, as signifying the concept of the intellect. Hence Augustine says (De Trin. xv, 10): "Whoever can understand the word, not only before it is sounded, but also before thought has clothed it with imaginary sound, can already see some likeness of that Word of Whom it is said: In the beginning was the Word." The concept itself of the heart has of its own nature to proceed from something other than itself---namely, from the knowledge of the one conceiving. Hence "Word," according as we use the term strictly of God, signifies something proceeding from another; which belongs to the nature of personal terms in God, inasmuch as the divine persons are distinguished by origin ( Question [27], Articles [3],4,5). Hence the term "Word," according as we use the term strictly of God, is to be taken as said not essentially, but personally.
Reply to Objection 1: The Arians, who sprang from Origen, declared that the Son differed in substance from the Father. Hence, they endeavored to maintain that when the Son of God is called the Word, this is not to be understood in a strict
