In this part, Paul uses the illustration that an heir is in a better position than a slave to inherit an estate one day. God sent
Jesus as his heir to "redeem those under the law", so "all who are in Christ Jesus might receive adoption."
Verse 4 :
But when the fullness of the time had come, God sent forth His Son, born of a woman, born under the law, • "The fullness of the time": Paul believed and affirmed that the sending of Jesus Christ is at "the nodal point of salvation-history". • "Born of a woman": According to
Cornelius a Lapide, this "denotes conception without a male". It is Paul's only reference to
Saint Mary. • "Born under the law" means "born as a Jew."
Verse 5 :
to redeem those who were under the law, that we might receive the adoption as sons. • "To redeem those who were under the law": means "to redeem from the 'curse of the law"' (
Galatians 3:13), which is achieved by Christ's death "on which a curse was pronounced".
Verse 6 :
And because you are sons, God has sent forth the Spirit of His Son into your hearts, crying out, "Abba, Father!" • "And because you are sons": Some copies have "...sons of God"; the Ethiopian version reads "inasmuch as ye are his sons". "the Spirit of the King Messiah". ==Want to Be Enslaved Again? (4:8–11)==