Paul, an apostle (not commissioned and sent from men nor through the agency of man, but through Jesus Christ—the Messiah—and God the Father, who raised Him from the dead),

But when [in God’s plan] the proper time had fully come, God sent His Son, born of a woman, born under the [regulations of the] Law,

And because you [really] are [His] sons, God has sent the Spirit of His Son into our hearts, crying out, “Abba! Father!”

But what does the Scripture say?

“Cast out the bondwoman [Hagar] and her son [Ishmael],
For never shall the son of the bondwoman be heir and share the inheritance with the son of the free woman.”