This is usually taken from a passage in Romans 11, but the theory is a misleading one that doesn't consider the bigger context of what else Paul said in his Romans letter regarding Jew and Gentile. And another explanation he gives is in Ephesians chapter 2 ... where both Jew and Gentile were reconciled together into one body—the body of Christ—giving both groups access to the Father by one Spirit. In other words, we Gentiles weren't merged into Israel. Both which had been separated were brought together and joined in Christ himself.
906. False Assumptions: Gentiles Grafted Into Israel?
This is usually taken from a passage in Romans 11, but the theory is a misleading one that doesn't consider the bigger context of what else Paul said in his Romans letter regarding Jew and Gentile. And another explanation he gives is in Ephesians chapter 2 ... where both Jew and Gentile were reconciled together into one body—the body of Christ—giving both groups access to the Father by one Spirit. In other words, we Gentiles weren't merged into Israel. Both which had been separated were brought together and joined in Christ himself.