And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence.
All Commentaries on Colossians 1:18 Go To Colossians 1
Augustine of Hippo
AD 430
This is also what is meant when it said, “he emptied himself,” because he did not appear to men in that dignity which he had with the Father, but took into account the weakness of those who did not yet have a clean heart whereby they might see the Word in the beginning with the Father. What then do the words “he left the Father” mean? He left [the Father] to appear to men as he is with the Father. He likewise left his mother, that is, the old and carnal observance of the synagogue, which was a mother to him from the seed of David according to the flesh. And he clung to his wife, that is, the church, so that they might be two in one flesh. For the apostle says that he is the head of the church and the church is his body. .