What is suggested is not that there isn't a national Israel, is that the National Israel has no further part to play and God is "done" with them and exclusively deals with 'spiritual Israel" now.
God is not done with anyone and never has been, but what you are missing is that when it comes to salvation He deals with individuals, not nations. He wants each individual to repent and put his or her faith in His Son and that's what it's all about.
What Paul did teach is that when the fullness of the Gentiles come in, the blindness in part will be healed and they'll be saved.
You didn't specifically address anything I said. Why not? No, Paul did not teach that. If that was the case, then why did he say that he hoped to help save some of those who were blinded in his day? The way you look at this, those who were blinded were blinded permanently and that would be the case up until the future time when the fullness of the Gentiles has come in. But, that cannot possibly be what Paul was teaching or else he would not have said that he hoped to help save some of his fellow Israelites who were blinded in his day.
Yeah, National Israel gave birth to unbelievers, that is, branches broken off in unbelief that God is able to graft back in, when their blindness in part is healed.
I was talking about the woman of Revelation 12. The only children that it references of the Revelation 12 woman are Jesus (Rev 12:5) and those who follow Jesus (Rev 12:17). That is not a description of national Israel.
As for what you said here, do you not understand that some of those branches that were broken off (representing Israelites who were in unbelief and were blinded) in Paul's day ended up being saved? You act as if their blindness was a long-term thing and would not be removed until a later time, but it wasn't a corporate long-term blindness. Each individual unbelieving Israelite was blinded for a time so that the gospel of salvation could go to the Gentiles. Then the plan was for the Gentiles to provoke those blinded Israelites to jealousy so that they too would want to be saved. And a number of them who had been blinded were later saved. That's what you're missing. You're acting as if the partial blindness was a long-term thing that God would only deal with at some much later time, but that is not at all what it's about.
Read Romans 11:11-14 and see for yourself that Paul hoped to lead some of those who were blinded in his day to salvation. In your view, that was impossible because you see the blindness as being a long-term thing and that each one who has been blinded for the past almost 2,000 years had no chance of being saved and that no one who is blinded would ever be saved until a future time. That is NOT what Paul taught.
Remember it is to the unbelieving Pharisees that Jesus said they will not see Him again until they say "Blessed is He who comes in the name of the Lord" (Matthew 23:39) That is, they acknowledge who He is, and they can't do that without the Holy Spirit. So God has to do something to them first.
That verse is badly misunderstood by dispensationalists like yourself. Jesus was talking specifically to and about the Pharisees there and not about Israelites in the distant future. He was telling them, the Pharisees He was talking to, that they in particular would not see Him again unless they said "Blessed is He who comes in the name of the Lord". While some of them did later put their faith in Christ, most did not and, because of that, they ended up being destroyed when their city Jerusalem was destroyed in 70 AD. Matthew 23:39 is not some promise to distant future Israelites as dispensationalist imagine. God is not going to one day make all Israelites believe after purposely withholding salvation from most of them for at least 2,000 years as dispensationalists believe. No, God has offered salvation to all of them for the past almost 2,000 years and has not withheld salvation from anyone during that time. Making it as if God will save all of them in the future after purposely withholding salvation from most of them for at least around 2,000 years contradicts the character of God who wants all people to be saved (1 Tim 2:3-6).
Again, you miss that those who were blinded, like those unbelieving Pharisees, were not blinded for the rest of their lives, but only until the gospel went to the Gentiles after which the Gentiles provoked some of them to jealousy and they became saved. And that has gone on ever since as more and more Jews have been saved over the years and that will continue until the fullness of the Gentiles has come in. To look at all of this only from a future perspective causes you to miss the reason that God blinded the unbelieving Israelites. The reason certainly wasn't for the purpose of withholding salvation from most of them for at least 2,000 years until finally one day saving all of them in the future, that's for sure. Yet, that is what you believe, isn't it. Why would God withhold salvation from them for so long only to then save all of them in the future? How would that be fair to all of those who were blinded with (supposedly) no chance of salvation the previous 2,000 or more years?
Paul said "until the fulness of the Gentiles are come in"
and that is a yet future thing.
Yes, but you miss what that means, which I touched on above. What Paul said would happen up until the fullness of the Gentiles comes in is that part of Israel would be blinded like they were in Paul's day with the hope that some of them would be provoked to jealousy by the salvation of the Gentiles so that they would be saved as well. That was God's plan for their salvation. That they would be led to salvation by the Gentiles after initially it being the case that the Jews brought the gospel of salvation to the Gentiles. That plan has been ongoing for almost 2,000 years now and will continue until the fullness of the Gentiles has come in. The idea that all Israelites will be saved one day completely contradicts what Paul taught throughout Romans 11. He taught that salvation is by way of faith, not nationality. Those Israelites who were in unbelief were cut off. Their nationality didn't save them. But, Paul said if they did not continue in their unbelief then they could be grafted back in (Rom 11:23). He was not talking about them corporately there, he was talking about the very individuals who were cut off because of unbelief having the opportunity to be grafted back in if they repented and put their faith in Christ. And some of them did. Paul himself led some of them to salvation, as he talked about in Romans 11:11-14.
and that's where we'll differ. That I still see a yet future, eschatalogical repentence of National Israel, that is part of HOW the second coming happens.
Jesus made a promise in Matthew 23:39.
Zechariah 12:10, and Revelation 7 and 14's 144000 is the result of that promise.
You are misinterpreting all of those verses. It doesn't fit the context of the surrounding verses in each case and doesn't fit what scripture teaches as a whole. As for Zechariah 12:10, the fulfillment of that is shown here to be in relation to the first coming, not the second coming.
John 19:34 Instead,
one of the soldiers pierced Jesus’ side with a spear, bringing a sudden flow of blood and water. 35 The man who saw it has given testimony, and his testimony is true. He knows that he tells the truth, and he testifies so that you also may believe. 36 These things happened so that the scripture would be fulfilled: “Not one of his bones will be broken,” 37
and, as another scripture says, “They will look on the one they have pierced.”
Can you see here that Jesus specifically related Zechariah 12:10 to what happened at that time long ago? You need to interpret scripture with scripture here. I know you likely think that Zechariah 12:10 relates directly to Mathew 24:30 and Revelation 1:7, but it does not. There are similarities, but significant differences, also. Zechariah 12:10 has to do with people mourning His death, as many did when He died, while Matthew 24:30 and Revelation 1:7 have to do with people wailing in fear of His wrath when He comes again. And we should trust that Jesus knew what He was talking about by applying the verse to the time of His first coming instead of His second coming.