36. That the Son is the Co-existing Word, argued from the New Testament. Texts from the Old Testamentcontinued; especially Psalm 110:3. Besides, the Word in Old Testamentmay be Son in New, as Spirit in Old Testamentis Paraclete in New. Objection from Acts 10:36; answered by parallels, such as 1 Corinthians 1:5. Lev. 9:7. etc. Necessity of the Word's taking flesh, viz. to sanctify, yet without destroying, the flesh
26 But that the Son has no beginning of being, but before He was made man was ever with the Father, John makes clear in his first Epistle, writing thus: 'That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled of the Word of Life; and the Life was manifested, and we have seen it; and we bear witness and declare unto you that Eternal Life, which was with the Father, and was manifested unto us.' While he says here that 'the Life,' not 'became,' but 'was with the Father,' in the end of his Epistle he says the Son is the Life, writing, 'And we are in Him that is True, even in His Son, Jesus Christ; this is the True God and Eternal Life. ' But if the Son is the Life, and the Life was with the Father, and if the Son was with the Father, and the same Evangelist says, 'And the Word was with God,' the Son must be the Word, which is ever with the Father. And as the 'Son' is 'Word,' so 'God' must be 'the Father.' Moreover, the Son, according to John, is not merely 'God' but 'True God;' for according to the same Evangelist, 'And the Word was God;' and the Son said, 'I am the Life. ' Therefore the Son is the Word and Life which is with the Father. And again, what is said in the same John, 'The Only-begotten Son which is in the bosom of the Father,' shows that the Son was ever. For whom John calls Son, Him David mentions in the Psalm as God's Hand, saying, 'Why stretchest Thou not forth Your Right Hand out of Your bosom?' Therefore if the Hand is in the bosom, and the Son in the bosom, the Son will be the Hand, and the Hand will be the Son, through whom the Father made all things; for it is written, 'Your Hand made all these things,' and 'He led out His people with His Hand;' therefore through the Son. And if 'this is the changing of the Right Hand of the Most Highest,' and again, 'Unto the end, concerning the things that shall be changed, a song for My Well-beloved;' the Well-beloved then is the Hand that was changed; concerning whom the Divine Voice also says, 'This is My Beloved Son.' This 'My Hand' then is equivalent to 'This My Son.'
27. But since there are ill-instructed men who, while resisting the doctrine of a Son, think little of the words, 'From the womb before the morning star I begot You;' as if this referred to His relation to Mary, alleging that He was born of Mary 'before the morning star,' for that to say 'womb' could not refer to His relation towards God, we must say a few words here. If then, because the 'womb' is human, therefore it is foreign to God, plainly 'heart' too has a human meaning, for that which has heart has womb also. Since then both are human, we must deny both, or seek to explain both. Now as a word is from the heart, so is an offspring from the womb; and as when the heart of God is spoken of, we do not conceive of it as human, so if Scripture says 'from the womb,' we must not take it in a corporeal sense. For it is usual with divine Scripture to speak and signify in the way of man what is above man. Thus speaking of the creation it says, 'Your hands made me and fashioned me,' and, 'Your hand made all these things,' and, 'He commanded and they were created. ' Suitable then is its language about everything; attributing to the Son 'propriety' and 'genuineness,' and to the creation 'the beginning of being.' For the one God makes and creates; but Him He begets from Himself, Word or Wisdom. Now 'womb' and 'heart' plainly declare the proper and the genuine; for we too have this from the womb; but our works we make by the hand.
28. What means then, say they, 'Before the morning star?' I would answer, that if 'Before the morning star' shows that His birth from Mary was wonderful, many others besides have been born before the rising of the star. What then is said so wonderful in His instance, that He should record it as some choice prerogative, when it is common to many? Next, to beget differs from bringing forth; for begetting involves the primary foundation, but to bring forth is nothing else than the production of what exists. If then the term belongs to the body, let it be observed that He did not then receive a beginning of coming to be when he was evangelized to the shepherds by night, but when the Angel spoke to the Virgin. And that was not night, for this is not said; on the contrary, it was night when He issued from the womb. This difference Scripture makes, and says on the one hand that He was begotten before the morning star, and on the other speaks of His proceeding from the womb, as in the twenty-first Psalm, 'You are he that drew Me from the womb. ' Besides, He did not say, 'before the rising of the morning star,' but simply 'before the morning star.' If then the phrase must be taken of the body, then either the body must be before Adam, for the stars were before Adam, or we have to investigate the sense of the letter. And this John enables us to do, who says in the Apocalypse, 'I am Alpha and Omega, the first and the last, the beginning and the end. Blessed are they who make broad their robes, that they may have right to the tree of life, and may enter in through the gates into the city. For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever makes and loves a lie. I Jesus have sent My Angel, to testify these things in the Churches. I am the Root and the Offspring of David, the Bright and Morning Star. And the Spirit and the Bride say, Come; and let him that hears say, Come; and let him that is thirsty, Come; and whosoever will, let him take of the water of life freely. ' If then 'the Offspring of David' be the 'Bright and Morning Star,' it is plain that the flesh of the Saviour is called 'the Morning Star,' which the Offspring from God preceded; so that the sense of the Psalm is this, 'I have begotten You from Myself before Your appearance in the flesh;' for 'before the Morning Star' is equivalent to 'before the Incarnation of the Word.'
Source: Four Discourses Against the Arians (New Advent)