Isaias 49:5

Again, let any one consider how Jesus was to His disciples, not as He who sits at meat, but as He who serves, and how though the Son of God He took on Him the form of a servant for the sake of the freedom of those who were enslaved in sin, and he will be at no loss to account for the Father’s saying to Him: “Thou art My servant,” and a little further on: “It is a great thing that thou shouldst be called My servant.” For we do not hesitate to say that the goodness of Christ appears in a greater and more divine light, and more according to the image of the Father, because “He humbled Himself, becoming obedient unto death, even the death of the cross,” than if He had judged it a thing to be grasped to be equal with God, and had shrunk from becoming a servant for the salvation of the world. …

Against VI. The blessed Paul calls that which was assumed by God the Word “form of a servant,” but since the assumption was prior to the union, and the blessed Paul was discoursing about the assumption when he called the nature which was assumed “form of a servant,” after the making of the union the name of “servitude” has no longer place. For seeing that the Apostle when writing to them that believed in Him said, “So thou art not a servant but a son” and the Lord said to His disciples, “Henceforth I will not call you servants but friends;” much more the first fruits of our nature, through whom even we were guerdoned with the boon of adoption, would be released from the title of servant. …

9. But though we were to allow some prerogative to the Protoplast as having been deemed worthy of the hand of God, still it must be one of honour not of nature. For he came of the earth, as other men; and the hand which then fashioned Adam, is also both now and ever fashioning and giving entire consistence to those who come after him. And God Himself declares this to Jeremiah, as I said before; ‘Before I formed thee in the womb, I knew thee;’ and so He says of all, ‘All those things hath My hand made;’ and again by Isaiah, ‘Thus saith the Lord, thy redeemer, and He that formed thee from the womb, I am the Lord that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by Myself.’ And David, knowing this, says in the Psalm, ‘Thy hands have made me and fashioned me;’ and he who says in Isaiah, ‘Thus saith the Lord who formed me from the womb to be His …

Chapter XX . Texts Explained; Sixthly, Proverbs viii. 22 Continued. Our Lord is said to be created ‘for the works,’ i.e. with a particular purpose, which no mere creatures are ever said to be. Parallel of Isai. xlix. 5 , &c. When His manhood is spoken of, a reason for it is added; not so when His Divine Nature; Texts in proof.

51 ( continued ). For the passage in the Proverbs, as I have said before, signifies, not the Essence, but the manhood of the Word; for if He says that He was created ‘for the works,’ He shews His intention of signifying, not His Essence, but the Economy which took place ‘for His works,’ which comes second to being. For things which are in formation and creation are made specially that they may be and exist, and next they have to do whatever the Word bids them, as may be seen in the case of all things. For Adam was created, not that He might work, but that first he might be man; for it was after this that he received the command to work. And Noah was created, not because of the ark, but that first he might exist and be a man; for after this he received commandment to prepare the ark. …

God commands us by His prophet not to esteem any new God to be God, and not to worship any strange God. Now it is clear that that is called new which is not from everlasting, and on the contrary, that is called everlasting which is not new. He, then, who does not believe that the Only-begotten God is from everlasting of the Father does not deny that He is new, for that which is not everlasting is confessedly new; and that which is new is not God, according to the saying of Scripture, “there shall not be in thee any new God.” Therefore he who says that the Son “once was not,” denies His Godhead. Again, He Who says “thou shalt never worship a strange God” forbids us to worship another God; and the strange God is so called in contradistinction to our own God. Who, then, is our own God? Clearly, the true God. …

107. Not only does He undergo service in the character of man by reason of His descent from David, but also by reason of His name, as it is written: “I have found David My Servant;” and elsewhere: “Behold I will send unto you My Servant, the Orient is His name.” And the Son Himself says: “Thus saith the Lord, that formed Me from the womb to be His servant, and said unto Me: It is a great thing for Thee to be called My Servant. Behold I have set Thee up for a witness to My people, and a light to the Gentiles, that Thou mayest be for salvation unto the ends of the earth.” To whom is this said, if not to Christ? Who being in the form of God, emptied Himself and took upon Him the form of a servant. But what can be in the form of God, except that which exists in the fulness of the Godhead?