But what does Scripture say? “Get rid of the slave woman and her son. The slave woman’s son will never share the family property with the free woman’s son.”
But Scripture has locked up everything under the control of sin, so that what was promised could be given through faith in Jesus Christ to those who believe.
Scripture saw long ago that God would make the Gentiles right with himself by faith. It announced the good news ahead of time to Abraham: “All nations will be blessed through you.”
God didn’t reject his people, the ones he knew ahead of time. Don’t you know what Scripture says in the story of Elijah? Elijah complained to God about Israel and said,