Romans 11:1-2, 13-15, 28-32

I say then, has God rejected and disowned His people? Certainly not! For I too am an Israelite, a descendant of Abraham, of the tribe of Benjamin. [1 Sam 12:22; Jer 31:37; 33:24-26; Phil 3:5] God has not rejected His [chosen] people whom He foreknew. Or do you not know what the Scripture says of Elijah, how he pleads with God against Israel? [Ps 94:14; 1 Kin 19]

But now I am speaking to you who are Gentiles. Inasmuch then as I am an apostle to the Gentiles, I magnify my ministry, in the hope of somehow making my fellow countrymen jealous [by stirring them up so that they will seek the truth] and perhaps save some of them. For if their [present] rejection [of salvation] is for the reconciliation of the world [to God], what will their acceptance [of salvation] be but [nothing less than] life from the dead?

From the standpoint of the gospel, the Jews [at present] are enemies [of God] for your sake [which is for your benefit], but from the standpoint of God’s choice [of the Jews as His people], they are still loved by Him for the sake of the fathers. For the gifts and the calling of God are irrevocable [for He does not withdraw what He has given, nor does He change His mind about those to whom He gives His grace or to whom He sends His call]. Just as you once were disobedient and failed to listen to God, but have now obtained mercy because of their disobedience, so they too have now become disobedient so that they too may one day receive mercy because of the mercy shown to you. For God has imprisoned all in disobedience so that He may show mercy to all [Jew and Gentile alike].