I am the LORD: that is my name: and my glory will I not give to another, neither my praise to graven images.
All Commentaries on Isaiah 42:8 Go To Isaiah 42
Cyril of Alexandria
There was no other way to honor the slave [i.e., humanity] except by making the characteristics of the slave his very own so that they could be illumined from his own glory. What is preeminent will always conquer, and the shame of the slavery is thus borne away from us. He who was above us became as we are. He who is naturally free took on the limitations of our life. This was why honors passed even to us, for we too are called the children of God, and we regard his own true Father as our Father also. All that is human has become his own. And so, to say that he assumed the form of a slave expresses the whole mystery of the economy in the flesh. So, if [my opponents] confess one Lord and Son, the Word of God the Father, but say that a simple man of the line of David was conjoined as a companion of his sonship and his glory, then it is time for you to speak to people who choose to think like this.… It seems that they argue as though there are two sons unequal in nature and that a slave is crowned with the glory that is proper to God, that some bastard son is decked out with the selfsame dignities as the one who is really God’s natural Son, even though God says quite clearly, “I will not give my glory to another.” How can someone who has only been honored with a mere conjunction fail to be “other” to the true and natural Son when he has just been assumed for the office of servant, given the honor of sonship, just like us, and sharing in another’s glory that he attains by grace and favor?
So the Emmanuel must not be separated out into a man, considered as distinct from God the Word? On no account. I say that we must call him God made man, and that both the one and the other are this same reality, for he did not cease to be God when he became man, nor did he regard the economy as unacceptable by disdaining the limitations involved in the self-emptying.