I think you take this out of context of the whole Chapter 11. Paul is talking about the Remant of Israel …and talking about why did not all the Jews accept Christ. That is the subject of Chapter 11.
No, I did not take Rom. 11:6 out of context. It’s the principle by which there’s a Jewish remnant in the church today (vs. 5). It’s the basic principle of all salvation:Rom 11:6 "
But if it is by grace, it is no longer on the basis of works, otherwise grace is no longer grace."Romans eleven is revealing God’s overall present program for Gentiledom and His yet future program for national Israel.
National Israel was broken off from the olive tree because of its
unbelief. Their rejection of Messiah, her King. (see vs. 20). And the prophetic program for the promised, Davidic Kingdom with Jesus ruling on His father David’s throne in Jerusalem (Lk. 1:32-33) was postponed; and God has instead turned
primarily to the Gentiles to build His church, but within His church is a
remnant of Jewish believers.
But this partial hardening that has happened to ISRAEL is only temporary. It has happened only UNTIL the “
fulness of the Gentiles has come in” (vs. 25) That is, until all the Gentiles that will come into the church (not the RCC), during this church age, through faith in Christ, have come in. Then the church is taken up (raptured) to meet the Lord in the air to be with Him forever (Jn. 14:3; 1 Thess. 4:15-18; 2 Thess. 2:1).
THEN God will turn again to national Israel to fulfill His prophetic promises and unconditional covenants with her (vss. 26-29).
You grossly misinterpret Romans chapter eleven because you fail to understand the difference between the
church Christ is presently building (Matt. 16:18; Eph. 2:20-22), calling it out from both
individual Jews and Gentiles through faith in Christ alone, and that of
national Israel, with whom God will yet fulfill the prophetic promises and unconditional covenants He made with her.
The church lost these truths when it early on embraced the
allegorical method of interpreting Scripture.