Paul knew that Israel, as a whole, had rejected his Messiah. But, a remnant embraces the gospel of Jesus Christ, and God has worked in Israel through a faithful remnant (in the same way he did in the time of Elijah).
Paul knew that Israel, as a whole, had rejected his Messiah. But, a remnant embraces the gospel of Jesus Christ, and God has worked in Israel through a faithful remnant (in the same way he did in the time of Elijah).