“For Paul, who the Son is was expressed in what he did.
As Son, he is like God, and so his actions – including his self-humiliation and willingness to accept death – show us what God himself is like.
The Son of God is the one who, because he was obedient, carried out God’s will.
As God’s Son, Christ was sent by God to fulfill God’s purpose – which was, as we have seen, to enable men and women to become his children.”
(Morna D. Hooker, Paul: Beginners Guides, pg. 49)