[13] Furthermore, nothing created can be equal to God. The Son, however, is equal to the Father. For John (5:18) says: “The Jews sought the more to kill Him, because He did not only break the Sabbath, but also said God was His Father, making Himself equal to God.” And this is the narrative of the Evangelist whose “testimony is true” (John 19:13; 21:74): that Christ said He was the Son of God and the equal of God, and that for these things the Jews were persecuting Him. Nor is there doubt for any Christian that what Christ said of Himself is true, when the Apostle also says that He “thought it not robbery to be equal with God” (Phil. 2:6). The Son, therefore, is equal to the Father. He is not, then, a creature.

[14] Moreover, in the Psalms (88:7; 82:1) we read that there is no likeness of anyone to God even among the angels who are called the sons of God. “Who,” it says, “among the sons of God shall be like God?” And elsewhere: “O God, who shall be like to You?” This should be understood of perfect likeness; which is clear from the things treated in Book I. But Christ showed his perfect likeness to the Father even in living, for John (5:26) says: “As the Father has life in Himself, so He has given to the Son also to have life in Himself.” Therefore, Christ is not to be counted among the created sons of God.

[15] Furthermore, no created substance represents God in His substance, for, whatever be the perfection of any creature whatever that appears, it is less than that which God is; hence, there is no creature through whom we can know what-He-is about God. But the Son does represent the Father, for of Him the Apostle says that He “is the image of the invisible God” (Col. 1:15). And lest He be judged a deficient image, one not representing the essence of God, one through which what-He-is could not be known of God (thus is man called the “image of God” in 1 Cor. 11:7); He is shown to be the perfect image, representing the very substance of God, when the Apostle says: “Who being the brightness of His glory, and the figure of His substance” (Heb. 1:3). Therefore, the Son is not a creature.

[16] There is more. Nothing which is in a genus is the universal cause of those things which are in that genus. So, the universal cause of men is not a man for nothing is the cause of itself, but the sun which is outside the human genus is the universal cause of human generation, and beyond it God is. But, the Son is the universal cause of creatures, for John (1:3) says: “All things were made by Him”; and in Proverbs (8:30) the begotten Wisdom says: “I was with Him forming all things”; and the Apostle says: “In Him were all things created in heaven and on earth” (Col. 1:16). Therefore, He Himself is not in the genus of creatures.

[17] Similarly, it is clear from what was shown in Book II that the incorporeal substances that we call angels cannot be made except by creation, and it was also shown that no substance can create but God alone. But the Son of God, Jesus Christ, is the cause of the angels, bringing them into being, for the Apostle says: “whether thrones, or dominations, or principalities, or powers: all things were created by Him and in Him” (Col. 1:16)., Therefore, the Son Himself, is not a creature.

[18] Furthermore, since the proper action of anything at all follows its very nature, a thing’s proper action is fitting to nothing to which the nature of that thing is not fitting; thus, what does not have the human species does not have the human action. Now, the proper actions of God belong to the Son: to create (as already shown), to contain and conserve all things in being; and to wipe away sins. That these are proper to God is clear from the foregoing. But of the Son it is said that “by Him all things consist” (Col. 1: 3-7); and that He upholds “all things by the word of His power, making purgation of sins” (Heb. 1:3). The Son of God, then, is of the divine nature, and is not a creature.

[19] But because an Arian might say that the Son does these things not as a principal agent, but as an instrument of the principal agent which acts not by its own power but by the power of the principal agent, our Lord excluded this argument, saying in John (5:19): “what things soever the Father doth, these the Son also doth in like manner.” Then, just as the Father operates of Himself and by His proper power, so also does the Son.

[20] A still further conclusion from this saying is that virtue and power are identified in the Son and the Father. For He says that the Son works not only like the Father but the same things “in like manner.” But the same operation cannot be performed by two agents unless in dissimilarity: as the same thing done by a principal agent and its instrument; or, if in similarity, it must be that the agents come together in one power. Now, this power is sometimes collected from diverse powers in diverse agents, as when many men draw up a boat, for they all draw it up in the same way, and because the power of each is imperfect and insufficient for that effect, from the diverse powers is collected one power of them all which is sufficient for drawing up the boat. But, one cannot say this in the case of the Father and the Son, for the power of the Father is not imperfect but infinite, as was shown in Book I. There must, then, be numerical identity in the power of the Father and the Son. And since power follows nature, there must be numerical identity in the nature and essence of the Father and the Son. This also can be concluded from the things that were said earlier. For, if in the Son there is the divine nature (as has been shown in many ways), and if the divine nature cannot be multiplied as was shown in Book I, it follows necessarily that there is numerical identity of nature and essence in the Father and the Son.

[21] Again, our beatitude is ultimately in God alone, in whom alone also the hope of man must be placed, to whom alone also the honor of adoration must be given, as was shown in Book III. But our beatitude is in the Son of God. For He says in John (17:3): “This is eternal life: that they may know You,” namely, the Father, “and Jesus Christ whom You hast sent.” And 1 John (5:20) says of the Son that He is “true God and life eternal,” Now, it is certain that by the name “life eternal” the sacred Scripture signifies ultimate beatitude. Isaiah also says of the Son, as the Apostle brings out: “‘there shall be a root of Jesse, and He that shall rise up to rule the Gentiles, in Him the Gentiles shall hope” (Rom. 15:12; Isa. 11:10). It is said also in a Psalm (71:11): “And all the kings of the earth shall adore Him; all nations shall serve Him.” And John (5:23): “That all men may honour the Son, as they honour the Father.” And again a Psalm (96:7) says: “Adore Him, all you His angels.” That this is said of the Son the Apostle sets forth in Hebrews (1:6). Manifestly, therefore, the Son of God is true God.

[22] The arguments are also valid for establishing this point which were previously used against Photinus to show that Christ is not made God but true God.

[23] Taught, therefore, by those mentioned and very similar testimonies of sacred Scripture, the Catholic Church maintains that Christ is the true and natural Son of God, eternal, equal to the Father, true God, identical in essence and nature with the Father, begotten, not created, and not made.

[24] Wherefore it is clear that only in the Catholic Church does faith truly confess generation in God, when it relates the very generation of the Son to this: the Son has received the divine nature from the Father. But others who are heretics relate this generation to some extraneous nature: Photinus and Sabellius to human nature, indeed; Arius, however, to some created nature more worthy than all other creatures.

Arius also differs from Sabellius and Photinus in this: the former asserts that such generation was before the world was; the latter two deny that it was before the birth from the Virgin.

Sabellius nevertheless differs from Photinus in this: Sabellius confesses that Christ is true and natural God, but Photinus does not; neither does Arius. Photinus holds that He is pure man; Arius, that He is a kind of mixture of a certain very excellent creature both divine and human. The latter two, however, confess that the Person of the Father is other than the Person of the Son; this Sabellius denies.

[25] Therefore, the Catholic faith, keeping to the middle road, holds with Arius and Pbotinus against Sabellius that the Person of the Father is other than the Person of the Son, that the Son is begotten, but the Father entirely unbegotten; but with Sabellius against Photinus and Arius that Christ is true and natural God, the same in nature as the Father, although not the same in person. And from this, also, an indication of the Catholic truth can be gathered. For, as the Philosopher says, [ Prior Analytics II, 2] even falsehoods give witness, for falsehoods stand apart not only from the truth but from one another.

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