What does Romans 11 say about the relationship between Jews and Gentiles in salvation?

In Romans 11, Paul explains that there is only one way of salvation, which is by grace through faith in Jesus Christ, for both Jews and Gentiles. He makes it clear that being a descendant of Abraham or observing the law does not guarantee salvation. Instead, it is the remnant according to the election of grace that is saved (Romans 11:5). This signifies that God's saving work transcends ethnic boundaries and that all believers are unified in Christ, forming one body irrespective of their background. Paul emphasizes this unity, asserting that God is the one who orchestrates salvation, and through the Gospel, both Jews and Gentiles are called to faith in Him.