Actually the Bible explicitly says that absolutely all of them that survive the coming time of trouble, and the direct judgment of God immediately following that time, will be saved. But they will be saved only by trusting in Jesus. Then, at that time, they will all know Him, "from the least to the greatest." (Jeremiah 31:34)
This is only one of the many places in scripture where Our God has promised that absolutely all of this rebellious and ancient nation will eventually be brought into His blessing. For in Ezekiel the Lord tells the “mountains of Israel,” along with “the hills, the rivers, the valleys, the desolate wastes, and the cities that have been forsaken, which became plunder and mockery to the rest of the nations all around,” that “I will multiply men upon you, all the house of Israel, all of it; and the cities shall be inhabited and the ruins rebuilt. I will multiply upon you man and beast; and they shall increase and bear young; I will make you inhabited as in former times, and do better for you than at your beginnings.” (Ezekiel 36:4.10-11) In this passage, the Hebrew word “kol,” which literally translates as “all,” is repeated to stress that the Lord’s meaning is absolutely all of “the house of Israel.”
In the New Testament, Romans 11:26 says that “all Israel will be saved,” explaining two verses later that “Concerning the gospel they are enemies for your sake, but concerning the election they are beloved for the sake of the fathers. For the gifts and the calling of God are irrevocable.” (Romans 11:28-29) and Jeremiah 24:6-7 says, “For I will set My eyes on them for good, and I will bring them back to this land; I will build them and not pull them down, and I will plant them and not pluck them up. Then I will give them a heart to know Me, that I am the LORD; and they shall be My people, and I will be their God, for they shall return to Me with their whole heart.” And this explains both how “they all shall know Me, from the least of them to the greatest of them,” and “all Israel will be saved.” For God Himself has declared that at the promised time “they shall return to Me with their whole heart."
Two Israels.
Romans 9
6 Not as though the word of God hath taken none effect. For they are
not all Israel, which are
of Israel:
7 Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.
8 That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.
Of Israel:
Not all Israel
The children of the flesh
Not the children of God
Not the children of the promise
Not counted for the seed
All Israel:
Not the children of the flesh
The children of God
The children of the promise
Counted for the seed
Romans 11
26 And so
all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:
Only one Israel shall be saved.
All Israel.
The faithful obedient elect beloved foreknown remnant of
Romans 11.
The gifts and the calling are terms associated exclusively with those who have put their faith in Christ: His Church.
Upon whom does God bestow His gifts?
Romans 12:6
Having then
gifts differing according to the grace that is given to us, whether prophecy, let us prophesy according to the proportion of faith;
1 Corinthians 12:1
Now concerning spiritual
gifts, brethren, I would not have you ignorant.
1 Corinthians 12:4
Now there are diversities of
gifts, but the same Spirit.
1 Corinthians 12:9
To another faith by the same Spirit; to another the
gifts of healing by the same Spirit;
1 Corinthians 12:28
And God hath set some in the church, first apostles, secondarily prophets, thirdly teachers, after that miracles, then
gifts of healings, helps, governments, diversities of tongues.
1 Corinthians 14:12
Even so ye, forasmuch as ye are zealous of spiritual
gifts, seek that ye may excel to the edifying of the church.
God's gifts were not, and are not, bestowed upon those of Paul's countrymen according to the flesh who are enemies of the gospel.
They are bestowed exclusively upon God's "all Israel" remnant of His Holy Chosen People: His Church.
To them, and to no others, His gifts are irrevocable.
To whom is God's calling directed?
1 Corinthians 1:26
For ye see your
calling, brethren, how that not many wise men after the flesh, not many mighty, not many noble, are called:
1 Corinthians 7:20
Let every man abide in the same
calling wherein he was called.
Ephesians 1:18
The eyes of your understanding being enlightened; that ye may know what is the hope of his
calling, and what the riches of the glory of his inheritance in the saints,
Ephesians 4:4
There is one body, and one Spirit, even as ye are called in one hope of your
calling;
2 Thessalonians 1:11
Wherefore also we pray always for you, that our God would count you worthy of this
calling, and fulfil all the good pleasure of his goodness, and the work of faith with power:
2 Timothy 1:9
Who hath saved us, and called us with an holy
calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began,
Hebrews 3:1
Wherefore, holy brethren, partakers of the heavenly
calling, consider the Apostle and High Priest of our profession, Christ Jesus;
2 Peter 1:10
Wherefore the rather, brethren, give diligence to make your
calling and election sure: for if ye do these things, ye shall never fall:
God's calling was not, and is not, directed to those of Paul's countrymen according to the flesh who are enemies of the gospel.
It is directed exclusively to God's "all Israel" remnant of His Holy Chosen People: His Church.
To them, and to no others, His calling is irrevocable.
Under no conditions or circumstances can unbelievers, enemies of the gospel, ever be the recipients of God's gifts and calling.