Gregory of Nyssa — on Phil 2:7 (ANTIRRHETICUS AGAINST APOLLINARIUS)

“He says of the Son that he has "come to be in the likeness and form of men." If he "came to be" in this likeness, this obviously implies that he was not invested with it from the beginning. Before coming to be in that likeness he was not fashioned according to some corporeal pattern. For no embodied form could become the pattern for what is previously not embodied.”