God would not intentionally harden the Jews for He would want them to be saved, but it means that for the most part the nation of Israel, the Jews, accept the Old Testament, and abide by that, which is the partial hardening that they do not accept the whole truth, and do no accept the New Testament.
And when the fulness of the Gentiles be come in, which is when salvation is no longer available to the Gentiles, then God will turn Israel as a nation to the truth that Jesus is their Messiah, and so all Israel shall be saved.
Which the Bible says that God will gather the whole house of Jacob, all 12 tribes, and put them back on their land, and leave none of them in the nations anymore, and they shall know the LORD their God from that time forward, and He shall never hide His face from them again.
The Bible says that Israel has 70 weeks to make an end of sins, bring in everlasting righteousness, and anoint the most holy who is Jesus, and 69 weeks has passed, and the last week is the time that God causes all people who do not love Him to follow the man of sin, New Age Christ, and brings Israel to the truth that Jesus is their Messiah.
The man of sin will establish peace in the Middle East, and it will pave the way for all Jews to go to Israel, for the Gentile nations will see to it, and the man of sin wants them all back on their land, but God means it for good towards the Jews.
The Jews will build their temple, and go back to animal sacrifices, for they are blinded in part, for they believe partial truth, with no hassle from the Palestinians, and the Jews will split Jerusalem with the Palestinians.
The nation's governments will come together and say Peace and safety as they try to establish peace in the Middle East, and the 7 years period will begin.
In the middle of the 7 years the New Age Christ steps in to their temple, and tells them to stop animal sacrifices, and claims to be their God and messiah, and addresses the world that he evolved through nature, and can cause all people who follow him to be able to evolve through nature to be greater.
When the people who do not love God follows the man of sin then repentance, and salvation, are no longer available to them, and the fulness of the Gentiles have come in.
Then God will turn Israel to the truth that Jesus is their Messiah, and so all Israel shall be saved.
Rom 11:1 I say then, Hath God cast away his people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.
Rom 11:5 Even so then at this present time also there is a remnant according to the election of grace.
God did not cast away His people the Jews, and He did not cause them to be hardened in part, but it is the way it happened that the majority did not accept Jesus, but they went by the Old Testament, and there is always some Jews that accept the truth, as it is today.
It is speaking of Israel as a nation that is blinded in part, for the whole nation does not accept the truth, which many individual Jews accept the truth.
God could of touched Israel as a nation to believe the truth, and they would of believed, but He let them decide on their own the truth of Jesus Christ, and the majority did not believe.
The truth that the majority of Jews did not accept Jesus testifies that it is free will.
Jesus came unto His own, but His own did not receive Him, and the angel told Mary that Jesus shall save His people from their sins, and that He came to preach repentance, and salvation to the Jews.
So if it was Jesus' intention to save His people from their sins, but the majority did not accept Jesus, then it appears as if free will applies, for if it did not they would of all been saved which was the purpose, and desire of Jesus to save them all.
Also God said that He wants all people to repent, and come to the knowledge of the truth, and be saved, and commands all people everywhere, the whole world to repent, and He is no respecter of persons, but all who do righteousness in every nation is accepted with Him.
But we know not all people will accept the truth, but it is God's intention that everyone be saved, so it must be free will.
Some people do not understand what the Bible is saying concerning predestined to salvation, which means that God already had the plan to give salvation to the world before He laid down the foundation of the world, so it is the same as if the saints have that salvation in the beginning, for God calls things that have not happened yet, as though they already happened, like the Lamb was slain from the foundation of the world, and this salvation is to whoever wants this salvation, for the Spirit and bride say Come, and anybody that wants that salvation can have it, and Jesus lights every person that is born in this world, which means that anybody can see the light of Jesus and be saved.
God chose us we did not choose Him, but we have a choice for that is true love.
No person says Jesus is the Lord, but by the Holy Ghost.
No person comes to the Son unless the Father draws them.
Peter claimed Jesus as the Christ, the Son of the living God, which Jesus said flesh and blood did not reveal that to him, but the Father.
Many are called, but few are chosen, so God calls and chooses the person on earth.
When God calls a person He will work in their life to help them to find the truth, and when they get to the door of truth they have to decide to push it open for God's kingdom is true love, but they would of not gotten to the door of truth unless God intervened in their life to help them find the truth.
Many are called but few are chosen, because not all endure to get to the door of truth, and not many go through the door of truth.
Mat 7:13 Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat:
Mat 7:14 Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.
But they are on the road, but few that go in at the strait gate.
We have free will, but no one can get to the truth, and want to accept the truth, unless God works in their life, but not all He calls will make it to accept the whole truth.
Which means if God calls many but few are chosen, then there is a lot of people with good intentions, but they do not believe enough to be saved.
2Ti 3:4 lovers of pleasures more than lovers of God;
2Ti 3:5 Having a form of godliness, but denying the power thereof: from such turn away.
2Ti 3:7 Ever learning, and never able to come to the knowledge of the truth.
2Ti 2:19 Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, Let every one that nameth the name of Christ depart from iniquity.
2Ti 2:20 But in a great house there are not only vessels of gold and of silver, but also of wood and of earth; and some to honour, and some to dishonour.
2Ti 2:21 If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work.
Many people that claim Christ have not walked through the door of truth yet, for they will not let go of the flesh.
And many people that were called did not even get that far to claim Christ as their Savior.
Many are called but few are chosen, for God does the calling and choosing on earth, for we have free will, but we would of not gotten to the truth unless God intervened in our life, but we have to make the choice to walk through the door of truth for God's kingdom is true love.
If people do not have a choice in their salvation, but God chose who would be saved, and not saved, without their choice, then they are robots that have no choice but to comply seeing no other alternative.
People should not go against the good nature of God, for that should testify that God gave us a choice, for His kingdom is true love, for He is love, and He is not evil to condemn people that have no choice but to reject truth, which God said He is no respecter of persons, and what makes you to differ from another, and there is no difference between the Jew and the Gentile, and all have sinned and come short of the glory of God, and if you offend in the least of the law then you offend in all.
So God views all people the same, and in the same boat, so why would He chose some, and not others, without their choice, when they are all the same.
If you program your computer to say I love you when you start it up, do you think your computer really loves you, and would you delight in that.
God is the greatest love of all, and do you think He would delight in people that say they love Him that have no choice but to say that seeing no other alternative.
But with free will God gets the glory for nobody can accept the truth unless God intervenes in their life, for He chose us we did not choose Him.
But this choosing is on earth, for many are called but few are chosen, so God does the calling and choosing on earth, and if God chooses who will be saved, and not saved, without their choice, then why is God calling people that cannot be chosen if it was already determined in the beginning, and they do not have a choice.