Israel is one of the topics where many Christians disagree. For me it's clear. God has not forsaken Israel. He still loves them. He still has a plan for them. But first, He will finish with the Church, and then, with Israel. It's written in more details in Romans 9-11. Romans 11:25 'I do not want you to be ignorant of this mystery, brothers and sisters, so that you may not be conceited: Israel has experienced a hardening in part until the full number of the Gentiles has come in,'
Yes, Israel hardened their heart by sinning and being unfaithful, and God as a punishment, hardened their hearts even more. And it will remained hardened until the full number of Gentiles has come into heaven. Then, God will remove their sins so they can see that Jesus is Messiah. This will be the one third of Israel that survives the antichrist.
When God saved me, He gave me a heart that loves the nation of Israel. For me, the parable of prodigal son is Israel. Israel has abandoned God, but in the end they will return to their loving Father. God is not finished with them, His covenant with them is not finished, they can still return to Him through Jesus Christ.
It pains me when Christians say God is done with Israel, or that the Church has replaced Israel. We have been added to them. The Israel are still God's elect, Christians are the Priesthood of Christ (yes we are the spiritual seed of Abraham). Even when Jesus came, He first brought the gospel just to Israel, then after crucifixion is spread to us gentiles. Everything centres around Israel and Jerusalem, because God chose Jerusalem as His Holy city.
Matthew 24:32 “Now learn this lesson from the fig tree: As soon as its twigs get tender and its leaves come out, you know that summer is near. 33 Even so, when you see all these things, you know that it is near, right at the door. 34 Truly I tell you, this generation will certainly not pass away until all these things have happened.'
Israel is the fig tree, and now they prosper. That's why I believe we are so close to Jesus' return. Many think that the last generation is from 1948, but I believe it to be from 1988, as that's when almost 1.5M Jews migrated from USSR (after their deal with USA). A generation in the Bible is 70 years so from 1988 to about 2058, the rapture, the antichrist, the wrath of God, and return of Christ will happen. Of course the Bible doesn't say any of this, this is just my interpretation of things and it should be taken lightly.