Paul uses several stories form the Old Testament to illustrate God’s choices which divided the nation right from the beginning. God chooses to show mercy to some and also chooses who to use for his purposes.

Paul used many examples from the Old Testament to further his argument that God did not choose all Israel. All the way through their history a remnant remained faithful. Just like the clay cannot question the potter’s decision, we cannot question God’s decisions.

Paul is arguing against the rejection of the Jews. He uses an event in the life of Elijah to show that even in the darkest moments, there was a faithful remnant, the elect. Paul is an example of that as are the Apostles. God has made permanent covenants with his people that he cannot break.