That's not actually what Paul said, though. He was defining, Who is Israel? Not all of Abraham's children, only the one of promise. And not all of Isaac's children, only the one of election. He goes on to talk about the rement who will be saved. How Israel tried to be righteous by the Law, instead of faith.
In Romans 9:6-8, which is what I referenced, he wasn't just defining who is Israel. He was also defining who is not Israel. He said " For not all who are descended from Israel are Israel". So, he was speaking of two Israels here. That's the only way to make sense of what he said. He also said "Nor because they are his descendants are they all Abraham’s children" and " In other words, it is not the children by physical descent who are God’s children". So, he was clearly talking about an Israel of which those who were part of it were not part of it because of anything physical. Being a physical descendant of Abraham and the nation of Israel did not make someone part of the Israel of Paul said not all who are physically descended from the nation of Israel are part.
So, with that being said, I'm not sure why you would deny that Paul spoke of an "Israel besides the physical nation of Israel that is entirely spiritual in nature", as I had said.
And like Paul taught, God can have mercy and can harden, He blinded part of Israel, but the time would come that all of Israel would be saved.
Not all of the physical nation of Israel. That would contradict him having pointed out that being a physical descendant is not a determining factor in being part of the Israel of which not all who are physically descended from Israel are part. It is only those who are the spiritual children of Abraham, of God and of the promise who are counted as being part of the Israel of which all are, all are being and all will be saved.
And throughout this entire passage he continues to contrast Israel and the gentiles, including saved gentiles.
In short, these chapters 9-11 address, among other things, how God's promises to Israel are still valid, and that God considers the true Israel to be the Israelites who believe, who are of faith, as are we gentiles.
So, we agree, after all? What is going on here? You seemed to go from being completely off base about what Paul was writing in Romans 9 to completley spot on here. What gives? Would you agree then that when Paul said "For not all who are descended from Israel are Israel" he was saying not all who are physically descended from the nation of Israel are true Israel? And would you agree that the basis for being part of true Israel is not anything physical but rather is based on faith?
But at no time does Paul blend gentiles and Israel into a spiritual Israel. He maintains the contrast throughout.
And, now you've gone off track again. No, he contrasts people with faith with those who do not have faith. If you continue reading into Romans 10 and 11 you can see that he talks about Israelite and Gentiles believers coming together as one like he does in his other letters.
Romans 10:10 For it is with your heart that you believe and are justified, and it is with your mouth that you profess your faith and are saved. 11 As Scripture says, “Anyone who believes in him will never be put to shame.” 12
For there is no difference between Jew and Gentile—the same Lord is Lord of all and richly blesses all who call on him, 13 for, “Everyone who calls on the name of the Lord will be saved.”
Paul said "there is no difference between Jew and Gentile, so why are you trying to make a difference between them? Why would you want to keep separate what Jesus has brought together as one? There is no basis for seeing two separate groups of God's people. There is one and it's all who belong to Christ regardless of whether they are Jew or Gentile. Paul went on to show in Romans 11 how Jew and Gentile believers are grafted in together in the good olive tree. There is no basis for trying to keep Jews and Gentiles separate when scripture continually talks about how they have been brought together as one by the blood of Christ.
Also, Romans 9:6-8 refers to those of true Israel as being called through Isaac, as being the children of God and children of the promise. What else did Paul write about who are called through Isaac and who are the children of God and children of the promise?
Galatians 3:26 So
in Christ Jesus you are all children of God through faith, 27 for all of you who were baptized into Christ have clothed yourselves with Christ. 28
There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus. 29
If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.
Galatians 4:28 Now
you, brothers and sisters, like Isaac, are children of promise.
In these passages, Paul includes Gentile believers when using the same terms he used in Romans 9:6-8 to describe true Israel. So, with that being the case, why would you deny that Gentile believers are also part of true Israel? It has nothing to do with anything physical, as Paul made clear in Romans 9:6-8, so why do you make it as if it does?