Book IV.
Chapter I.
That Christ was before the Incarnation God from everlasting.
As we have finished three books with the most certain and the most valuable witnesses, whose truth is substantiated not only by human but also by Divine evidences, they would abundantly suffice to prove our case by Divine authority, especially as the Divine authority of the case itself would be enough for this. But still as the whole mass of the sacred Scriptures is full of these evidences, and where there are so many witnesses, there are so many opinions to be urged--nay where Holy Scripture itself gives its witness so to speak with one Divine mouth--we have thought it well to add some others still, not from any need of confirmation, but because of the supply of material at our disposal; so that anything which might be unnecessary for purposes of defence, might be useful by way of ornamentation. Therefore since in the earlier books we proved the Divinity of our Lord Jesus Christ while He was in the flesh by the evidence not only of prophets and apostles, but of evangelists and angels as well, let us now show that He who was born in the flesh was God even before His Incarnation; that you may understand by the harmony and concord of the evidences from the sacred Scriptures, that you ought to believe that at His birth in the body He was both God and man, who before His birth was only God, and that He who after He had been brought forth by the Virgin in the body was God, was before His birth from the Virgin, God the Word. Learn then first of all from the Apostle the teacher of the whole world, that He who is without beginning, God, the Son of God, became the Son of man at the end of the world, i.e., in the fulness of the times. For he says: "But when the fulness of the times was come, God sent His Son, made of a woman, made under the law." [2448] Tell me then, before the Lord Jesus Christ was born of His mother Mary, had God a Son or had He not? You cannot deny that He had, for never yet was there either a son without a father, or a father without a son: because as a son is so called with reference to a father, so is a father so named with reference to a son.
[2448] Gal. iv. 4.
Chapter II.
He infers from what he has said that the Virgin Mary gave birth to a Son who had pre-existed and was greater than she herself was.
You see then that when the Apostle says that God sent His Son, it was His own Son to use the actual words of the Apostle, "His own Son" that God sent. For, since He sent His own Son, it was not some one else's Son that He sent, nor could He send Him at all if He who was sent had no existence. He sent then, he says, "His own Son, made of a woman." Therefore because He sent Him, He sent one who existed: and because He sent His own, it certainly was not another's but His own whom He sent. What then becomes of that argument of yours drawn from this world's subtleties? No one ever yet gave birth to one who had already existed before. For had not the Lord a pre-existence before Mary? Was not the Son of God existent before the daughter of man? In a word did not God Himself exist before man--since certainly there is no man who is not from God. You see then that I do not merely say that Mary gave birth to one who had existed before her, not only, I say, one who had existed before her, but one who was the author of her being, and that in giving birth to her Creator, she became the mother of Him who gave her being: because it was as simple for God to bring about birth for Himself as for man and as easy for Him to arrange that He Himself should be born of mankind, as that a man should be born. For the power of God is not limited in regard to His own Person, as if what was allowable to Him in the case of all others, was not allowable in His own case, and as if He who in the Divine nature could do all things as God, was yet unable in His own Person to become God in man. Setting aside then and rejecting your foolish and feeble and dull arguments from earthly things, we ought merely to put credence in straightforward evidence and the naked truth, and to adapt our faith to those witnesses of God alone, whom God sent, and in whose person He Himself, so to speak, preached. For it is right to believe Him in a matter concerning knowledge of Himself, as everything that we know of Him comes from Him Himself, for God could not possibly be known of men, unless He Himself gave us the knowledge of Himself. And so it is right that we should believe everything of Him that we know, from whom comes everything that we know, for if we do not believe Him from whom our knowledge comes, the result will be that we shall know nothing at all, since we refuse to believe Him, through whom our knowledge comes.