Fulgentius of Ruspe

While the whole Word came to us when “the Word was made flesh,” the whole remained with the Father in Spirit, equal to the Father, from whom he is eternally begotten yet made less by the gracious assumption of flesh so that he could be visible to us. And by this the Lord from the Lord remained Lord “in the form of God.” In order that he might come to slaves he received “the form of a slave” from his handmaid.

Through the Son human nature was redeemed. It was human nature that he undoubtedly came to redeem. It was this human nature that the Son took up into the unity of his person. And because his humanity is never sundered from the Son of God, it therefore rules in heaven and earth over all angels and all humanity.