1. Paul is not happy that Israel does not believe the gospel. (9:1)
2. This does not mean that God's promises are void, because the promises to Abraham, as per Rom 4, apply to those who have faith. (9:8)
3. God's salvation comes by God's showing mercy, not by striving which seems to mean performing works of the law. (9:16)
4. God can apparently harden whom he will harden. (9:18)
5. Esau's judgement is interpreted as concerning his works in other New Testament literature. (Heb 12:16)
6. Why does God harden actively/allow Israel not to believe the gospel? Paul's answer is so that all those who do believe will be saved, from Israel and outside. This means that hardening is not arbitary, but for the sake of salvation. (9:21-24)
7. But why did Israel not recieve righteousness, while the Gentiles did? Paul's answer is that Israel did not seek it by faith. (9:30-32)
8. How then does God save, both Jew and Gentile? They are saved by hearing with faith.(10:9-17)
9. Why did some not believe, though all heard (Israel)? God held his hand out to a disobedient people. (10:21)
10. Paul's answer to the question of rejection is that God has a remnant, chosen by grace, they recieved righteouness, but by grace, not works. (11:5-7)
11. The others were hardened, but this hardening is mean, mysteriously to lead to the repentance of those hardened. (11:25-32)
12. The Gentiles who are grafted in by faith have just as much possibility of being broken off as those of Israel, broken off as they are, of being grafted by in, by faith or unbelief. (11:19-24)
What does all of this mean? That most interpretations of this passage probably do not do justice either to Paul's understanding of God's purposes in election and sway over human will or they do not do justice to Paul's argument concerning God's purposes to bring faith to those who have been hardened, in other words, the temporal nature of this passage is often discarded to speak of a flatly eternal sort of supralapsarian Calvinism, we must remember that Paul is dealing with his country men that he is laboring to see repent, not just concepts of potential people or lage people groups, he is trying to discern God's purpose in these people currently not believing the gospel, and it is so that other's might believe it, leading then to the salvation of those who, hardened though they were, initially denied it.