That's what the bible says, so of course I believe it.
Romans 11:25-27
I want you to understand this mystery, dear brothers and sisters, so that you will not feel proud about yourselves. Some of the people of Israel have hard hearts, but this will last only until the full number of Gentiles comes to Christ. 26 And so all Israel will be saved. As the Scriptures say,
“The one who rescues will come from Jerusalem,
and he will turn Israel away from ungodliness.
27 And this is my covenant with them,
that I will take away their sins.”
So you also believe Paul when he said in Romans 2:28 For he is not a Jew, which is one outwardly , neither is that circumcision , which is outward in the flesh
2:29 But he is a Jew, which is one inwardly , and circumcision is that of that of the heart, in the spirit, and not in the letter , whose praise is not of men , but of God.
Galatians 6:16 And as many as walk according to this rule, peace be on them , and mercy, and upon the Israel of God.
Romans 8:9 But ye are not in the flesh, but in the Spirit , if so be that the Spirit of God dwell in you, Now if any man have not the Spirit of Christ, he is none of his.
Romans 11:14 If by any means I may provoke to emulation them which are my flesh, and might save some of them.
Romans 11:5 Even so then at this present time also there is a remnant according to the election of grace
11:6 And if by grace, then bit is no more of works, otherwise grace is no more of grace, But if be of works, then is it no more of grace, otherwise work is no more work.
11:7 What then? Israel
( hath not ) obtained that which he seeketh for , but the ( election ) hath obtained it, and the (rest were blinded )
God has been saving Israel all this time , the election of grace and the rest will be blinded .
Cause they are Israelites
In the flesh or Jew does not make them all Israelites or Jews, its of the Spirit.
If they don't have the Spirit of Christ they are none of his.
Now to say all Israel will be saved because they are Jews would be against what Paul says.
If all Israel will be saved then that is to say no Israelite is in hell, just because he is a Israelite,
but I'm afraid there has been many go there because they didn't believe in the only begotten son of God.
St John 3:18 He that believeth on him is not condemned , but he that believeth not is condemned already, because he has not believed in the name of the only begotten Son of God.
Today is the day of salvation, so why do so many people tell the Jews God is coming back to save them after a rapture, then God will deal with Israel during the tribulation ,
He has never stop dealing with them , but they must be saved just like anyone else by repenting and believing the gospel,
that Christ died and rose the third day , that he is the way, and only way.
Jesus made a new covenant by shedding his blood on the cross for Jew and gentile alike and as many that will believe in him no mattere what race .
It is a everlasting covenant , there will not
be another , and he will not turn back to a old covenant .