The Israel that Paul is talking about in
Romans 11:25-27 is the same Israel Paul is talking about in verses 28-29
In other word, the Israel that it is said “ all Israel will be saved” is the same one spoken of in verses 28-29
Your spiritual forbears, whose traditions you have adopted and defended did not teach this, because when they were alive their was no nation of Israel. So they spiritualized all of the eschatological passages, because obviously the passages regarding Israel could not have been fulfilled in a nation that did not exist... that changed in the middle of the last century
but men like Darby knew Israel as a nation was going to be restored before it happened
Israel being a 'Nation', today in the Middle East, doesn't have a thing to do with any Bible Passage.
Not a grain of dust.
That does explain 'what you want it to say, though.
There it is.
The Bible says, All Israel shall be Saved', and there is a Nation of crossbred, intermingled, God-Hating religiously lost, blind souls over there looking for Their Messiah to Come, the first time.
Ever hear of Saducies and Pharisees?
Some bunch with mouths as open graves and whitewashed seplucres, another generation of vipers.
Jesus Could Come Back before 12 noon, Eastern Time, today, and they'd most every one of them be cast into The Eternal Lake of Fire.
No fruit on their tree, ever again.
If you want 'a nation born in a day', go to the 3,000 and more Saved on The Day of Pentecost and were added, by Scriptural Baptism, to The church of Jesus Christ He Anointed that Day.
I see what you are trying to plug, here and there, into some misconstruable wording (apparently), being used for that idea.
It's not actually there, however.
Has to be made up out of thin air.
The philosophy about 'forbears', is just that.
A Nation of lost, blind Infidels, without God and without Hope in this Life, or in Eternity, unless they have the Gospel Preached to the, and they are Granted Conviction of their sins and Repentance and Faith, is a Nation of lost, blind Infidels, without God and without Hope in this Life, or in Eternity, unless they have the Gospel Preached to them, and they are Granted Conviction of their sins and Repentance and Faith, in The Savior Jesus Christ.