" 26 And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob: 27 for this is my covenant unto them, when I shall take away their sins. "
God is being specific in HIs prophecy, as written here by Paul. God is clear He is speaking solely of Israel, and even mentions a covenant, of which only Jews have covenants. This covenatn is with the Jews, and speaks specifically of the Jews. I don't believe Paul is saying only Jews are saved. He is again defining the argument he made, showing that when he says all Israel will be saved, that that is exactly what he means. Specifically Israel, and specifically at that time, the end of the age. He further defines by saying:
" 28 As concerning the gospel, they are enemies for your sakes: but as touching the election, they are beloved for the fathers’ sakes. 29 For the gifts and calling of God are without repentance. 30 For as ye in times past have not believed God, yet have now obtained mercy through their unbelief: 31 even so have these also now not believed, that through your mercy they also may obtain mercy. 32 For God hath concluded them all in unbelief, that he might have mercy upon all."
Israel rejected the Messiah, but God had purpose for it. They are enemies for the sake of the Gentiles. When they rejected, God sent the gospel to the Gentiles, thus the Gentiles profitted when Israel rejected the Messiah. As such, the rejection of Israel was the profit of the whole world, as Paul said earlier. However, Israel was the elect nation of God, so they are beloved of God. Why? Because God chose them? No. See the word FOR in 29? What is written there is affects the previous. God's gifts and calling were to the forefathers, so God considers Israel beloved for the sake of the forefathers. Hence God did not reject Israel when Israel rejected God. Verse 30 wraps it up. The Gentiles did not believe God, but received mercy because Israel rejected in unbelief, and solely because Israel rejected in unbelief. Israel became like the Gentiles in unbelief, that in the Gentiles belief and the mercy they received, Israel may obtain mercy, which means, Israel will turn and believe. For God has concluded them all in unbelief (Jews and Gentiles), that he might have mercy upon all (Jews and Gentiles.)
Why do you believe God will not have mercy on Israel?