Exposition of the Christian Faith.
Chapter 3
39. But the Arians maintain the following: If you say that, as the Father is the only true God, so also is the Son, and confess that the Father and the Son are both of one substance, you introduce not one God, but two. For they who are of one substance seem not to be one God but two Gods. Just as two men or two sheep or more are spoken of, but a man and a sheep are not spoken of as two men or two sheep, but as one man and one sheep.
40. This is what the Arians say; and by this cunning argument they attempt to catch the more simple-minded. However if we read the divine Scriptures we shall find that plurality occurs rather amongst those things which are of a diverse and different substance, that is, of different substances. We have this set forth in the books of Solomon, in that passage in which he said: “There are three things impossible to understand, yea, a fourth which I know not, the track of an eagle in the air, the way of a serpent upon a rock, the path of a ship in the sea, and the way of a man in his youth.” An eagle and a ship and a serpent are not of one family and nature, but of a distinguishable and different substance, and yet they are three. On the testimony of Scripture, therefore, they learn that their arguments are against themselves.
41. Therefore, in saying that the substance of the Father and of the Son is diverse and their Godhead distinguishable, they themselves assert there are two Gods.
But we, when we confess the Father and the Son, in declaring them still to be of one Godhead, say that there are not two Gods, but one God. And this we establish by the word of the Lord. For where there are several, there is a difference either of nature or of will and work. Lastly, that they may be refuted on their own witness, two men are mentioned: But though they are of one nature by right of birth, yet in time and thought and work and place, they are apart; and so one man cannot be spoken of under the signification and number of two; for there is no unity where there is diversity. But God is said to be one, and the glory and completeness of the Father, the Son, and the Holy Spirit is thus expressed.
42. Such, indeed, is the truth of unity that, when the nature alone of human birth or of human flesh is indicated, one man is the term used for the many, as it is written: “The Lord is my helper, I will not fear what man can do unto me;” that is, not the one person of a man, but the one flesh, the one frailty of human birth. It added also: “It is better to trust in the Lord than to trust in man.” Here, too, it did not denote one particular man, but a universal condition. Then, immediately after it added, speaking of many: “It is better to put confidence in the Lord than to put confidence in princes.”
Where man is spoken of, as we have already said, there the common unity of the nature, which exists between all is indicated; but where the princes are mentioned, there is a certain distinction between their different powers.
43. Amongst men, or in men, there exists a unity in some one thing, either in love, or desire, or flesh, or devotion, or faith. But a universal unity, that embraces within itself all things agreeably to the divine glory, is the property of the Father, the Son, and the Holy Spirit alone.
44. Wherefore the Lord also, in pointing out the diversity that exists among men, who have nothing in common that can tend towards the unity of an indivisible substance, says: “In your law it is written that the testimony of two men is true.” But though He had said, “The testimony of two men is true,” when He came to the testimony of Himself and His Father, He said not: “Our testimony is true, for it is the testimony of two Gods;” but: “I am One that bear witness of Myself, and the Father that sent Me beareth witness of Me.” Earlier He also says: “If I judge, My judgment is true; for I am not alone, but I and the Father that sent Me.” Thus, both in one place and the other, He indicated both the Father and the Son, but neither implied the plurality, nor severed the unity of their divine Substance.
45. It is plain, then, that whatsoever is of one substance cannot be severed, even though it be not single, but one. Singleness has to do with a person; unity with a nature. That those things which are of a different substance are wont to be called, not one alone, but many, though already proved on the testimony of the prophet, the Apostle himself has stated in so many words, saying: “For though there be that are called gods, whether in heaven or in earth.” Dost thou see, then, that those who are of different substances, and not of the verity of one nature, are called “gods”? But the Father and the Son, being of one substance, are not two Gods, but “One God, the Father, of Whom are all things, and one Lord Jesus Christ, through Whom are all things.” “One God,” he says, “and one Lord Jesus;” and above: “One God, not two Gods;” and then: “One Lord, not two Lords.”
46. Plurality, therefore, is excluded, but the unity is not destroyed. But as, on the one hand, when we read of the Lord Jesus, we do not dissociate the Father, as I have already said, from the prerogative of ruling, because He has that in common with the Son; so, on the other hand, when we read of the only true God, the Father, we cannot sever the Son from the prerogative of the only true God, for He has that in common with the Father.
47. Let them say what they feel or what they think, when we read: “Thou shalt worship the Lord thy God, and Him only shalt thou serve.” Do they think Christ should not be worshipped, and that He ought not to be served? But if that woman of Canaan who worshipped Him, merited to gain what she asked for, and the Apostle Paul, who confessed himself to be the servant of Christ in the very outset of his letters, merited to be an Apostle “not of men, neither by man, but by Jesus Christ;” let them say what they think should follow. Would they prefer to join with Arius in a league of treachery, and so show, by denying Christ to be the only true God, that they consider He should neither be worshipped nor served? Or would they sooner go in company with Paul, who in serving and worshipping Christ did not disown in word and heart the only true God, Whom he acknowledged with dutiful service?
Chapter 4
48. But if any one were to say that the Son worships God the Father, because it is written, “Ye worship ye know not what, we know what we worship,” let him consider when it was said, and to whom, and to whose wishes it was in answer.
49. In the earlier verses of this chapter it was stated, not without reason, that Jesus, being weary with the journey, was sitting down, and that He asked a woman of Samaria to give Him drink; for He spoke as man; for as God He could neither be weary nor thirst.
50. So when this woman addressed Him as a Jew, and thought Him a prophet, He answers her, as a Jew who spiritually taught the mysteries of the Law: “Ye worship ye know not what, we know what we worship.” “We,” He says; for He joined Himself with men. But how is He joined with men, but according to the flesh? And to show that He answered as being incarnate, He added: “for salvation is of the Jews.”
51. But immediately after this He put aside His human feelings, saying: “But the hour cometh, and now is, when the true worshippers shall worship the Father.” He said not: “We shall worship.” This He would certainly have said, if He had a share in our obedience.
52. And when we read that Mary worshipped Him, we ought to learn that it is not possible for Him under the same nature both to worship as a servant, and to be worshipped as Lord; but rather that as man He is said to worship among men, and that as Lord He is worshipped by His servants.
53. Many things therefore we read and believe, in the light of the sacrament of the Incarnation. But even in the very feelings of our human nature we may behold the Divine Majesty. Jesus is wearied with His journey, that He may refresh the weary; He desires to drink, when about to give spiritual drink to the thirsty; He was hungry, when about to supply the food of salvation to the hungry; He dies, to live again; He is buried, to rise again; He hangs upon the dreadful tree, to strengthen those in dread; He veils the heaven with thick darkness, that He may give light; He makes the earth to shake, that He may make it strong; He rouses the sea, that He may calm it; He opens the tombs of the dead, that He may show they are the homes of the living; He is made of a Virgin, that men may believe He is born of God; He feigns not to know, that He may make the ignorant to know; as a Jew He is said to worship, that the Son may be worshipped as true God.