Faith joins Gentile and Jew into the Messiah as one entity
Paul begins to point to the stumbling of the Jewish people as a matter/cause what brings salvation to the gentiles. But he directly points out too, that the salvation is first the Jew and then the Greek (Ro.1:16) This salvation is to be attained since Christ completed the suffering self sacrifice as an atonement for the sins of “all Israel”. And now the time has come that gentiles also may be part of “all Israel”. All this is done by faith in this Christ which gives true righteousness. And the “all Israel” factor is a mystery what will be revealed in the future. (Of course in future, otherwise it would eliminate the free will and choice to repent.)
The faith (emunah) is the true righteousness and will gain the true Torah. This is not something new to the Jews. It is the most basic tenet together with repentance. Paul explains this with a well known verse of the Torah, Deu.30:12: For this commandment which I command you this day, it is not too hard for you, neither is it far off. It is not in heaven, that you should say, Who shall go up for us to heaven, and bring it to us, and make us to hear it, that we may do it? Neither is it beyond the sea, that you should say, Who shall go over the sea for us, and bring it to us, and make us to hear it, that we may do it? But the word is very near to you, in your mouth, and in your heart, that you may do it.
And this is Paul’s midrash (commentary) on it: For Christ is the fulfillment of the law for righteousness to everyone who believes. For Moses writes about the righteousness of the law, “The one who does them will live by them.” But the righteousness which is of faith says this, “Don’t say in your heart, ‘Who will ascend into heaven?’ (that is, to bring Christ down); or, ‘Who will descend into the abyss?’ (that is, to bring Christ up from the dead.)” But what does it say? “The word is near you, in your mouth, and in your heart;” that is, the word of faith, which we preach: that if you will confess with your mouth that Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved. For with the heart, one believes unto righteousness; and with the mouth confession is made unto salvation.
I have to say that many of the church communities are taught that the law (Torah) is the opposite to grace. Paul doesn’t do this here: Christ (grace) is the end of the law. (Ro.10:4-6) Not the opposite. Moses described the righteousness of the law, (v.5) but the same Moses described the righteousness of faith (v.6) in Deu.30:12.
Now the gentiles can get the same reward as the Jews can get, but it is not due to the law, but by means of believe that Christ fulfilled it and gives it to the believer.
There is neither Jew nor Greek, there is neither slave nor free man, there is neither male nor female; for you are all one in Christ Jesus. And if you belong to Christ, then you are Abraham’s descendants, heirs according to promise. (Gal.3:28-29) Paul here pointed back to the Abrahamic covenant in which all the people of the earth will be blessed. (Ge.12:3)
But it is all about those who are righteous. There’s a calling amongst Jew and now also gentiles, to become righteous, and an election to become one of them, one of the chosen people. This is what Paul says in Romans chapter 9. It’s not just Israel: For they are not all Israel, which are of Israel. (Ro.9:6) And then Paul shows on the hand of the patriarchs how Israel became Israel. Not by ethnic descendant, but by election. And not by works, but by faith. You can’t rely on the fact that you are the seed of Abraham: Neither, because they are Abraham’s seed, are they all children. But, “In Isaac will your seed be called.” (Ro.9:7) And you can’t rely on what comes from Isaac, because before the children were born it was already known that it was said to her, “The elder will serve the younger.” Even as it is written, “Jacob I loved, but Esau I hated.” (Ro.9:12-13) There’s an election according to God’s grace. And since the Messiah has come, this election is extended to the gentiles. The true people of God comes from anything but he who calls. (Ro.9:11) There’s a calling now also for the gentiles. It’s all from God who says: I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion. (Ro.9:15 / Ex.33:19) Will that eliminate the free will? Far from that: But indeed, O man, who are you to reply against God? Will the thing formed ask him who formed it, “Why did you make me like this?” Or hasn’t the potter a right over the clay, from the same lump to make one part a vessel for honor, and another for dishonor? What if God, willing to show his wrath, and to make his power known, endured with much patience vessels of wrath made for destruction, and that he might make known the riches of his glory on vessels of mercy, which he prepared beforehand for glory, us, whom he also called, not from the Jews only, but also from the Gentiles? (Ro.9:20-24)
Now Paul concludes: the goyim who didn’t seek righteousness got it, but, again, as many as are called. We can’t stress this enough. It’s an investigation for all of us: are we really called? Do we have true faith? Do we walk the right path? What are our deeds? Did we give our heart to Him who it belongs to? It are not the Jews, it is not the church, it is not our community, but those who fear God. (Ps.118:4)
The problem Paul faces is the lack of faith by the people of Israel. He admitted they have a zeal (קנא kinah, rendered back to Hebrew) of God (Ro.10:2), but what he wishes he would see by the Jews is the righteousness what comes through faith, which what he said is that if you will confess with your mouth that Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved. (Ro.10:9)
Age of the gentiles
The problem however is, the common Jews didn’t hear the gospel yet in Paul’s time. And therefore they couldn’t tell it to the world also and detract the message of Christ. They are still in the time of exile and bear the curse as it is written in the Torah. And although Paul sees the glory of the Messianic times in the prophecy (Ro.10:15) of Isaiah, he stresses here the fact that it is also stated in scripture that they are not all obedient to the gospel (v.16) and hence, like Isaiah said Who has believed our message? [Jew and Gentile] And to whom has the arm of the Lord been revealed? And then he comes to the conclusion that there must be a time of rejection of the Jewish people, a time of suffering. (Is.53#) The people of Israel didn’t understood. (Ro.10:2,19,21; Ro.11:8) The time wasn’t there yet for the restoration of the people of Israel, the end of the exile, and the gathering in the land, to live in peace. It will not say that the gentiles understood it well. They all were furious, Why do the nations rage, and the peoples plot a vain thing? Against the Anointed one? (Ps.2)
Just a few, a very few who are faithful and take the yoke of the despised Messiah. There would come a time of suffering rather than a glorious Messianic time on earth. And we see now that the people of Israel have its own unique role. Based on their special covenant as a nation and special blessings they also have special curses as a nation. The church could easily understand the curse, but now we see the emerging blessing since they have the land Israel back again. But also those who are called from the gentiles share the suffering. Since the great Master suffered, al his fellow people have a share in it, and a new era is about to begin. Not the glory of this world, but the world-to-come was expected. And despite of suffering, they already had glorious times because of the victory of the Messiah. That’s why Paul in the midst of his exaltation quoted psalm 44:23 Yes, for your sake we are killed all day long. We are regarded as sheep for the slaughter. (Ro.8:36)