The answer
One of the traits of God is that He is not impaired by change. He is absolutely perfect, which is why He is described by Holy Scripture as One “with Whom is no variableness, neither shadow of turning” (Jas. 1:17).
It is erroneous to say that, because of the Incarnation, the divinity underwent a change. The Incarnation is nothing but one of God’s great works, which was, and still is being, carried out through the ages. For God saw the corruption of man, and did not desire his death. So, the Word of God became flesh without sin, suffering death in order that He may save the corrupt man.
The Word Incarnate died and rose, and the divinity did not die. Thus the work of redemption was accomplished, and the divinity did not undergo change.
His Holiness Pope Tawadros II
Pope Tawadros II, My Faith: A Series of Dialogues on the Creed (Coptic Orthodox Patriarchate, 2014), 74–75.

