Rom 11:1 I say then, has God cast away His people? Certainly not! For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.
Rom 11:2 God has not cast away His people whom He foreknew. Or do you not know what the Scripture says of Elijah, how he pleads with God against Israel, saying,
Rom 11:3 "LORD, THEY HAVE KILLED YOUR PROPHETS AND TORN DOWN YOUR ALTARS, AND I ALONE AM LEFT, AND THEY SEEK MY LIFE"?
Rom 11:4 But what does the divine response say to him? "I HAVE RESERVED FOR MYSELF SEVEN THOUSAND MEN WHO HAVE NOT BOWED THE KNEE TO BAAL."
Rom 11:5 Even so then, at this present time there is a remnant according to the election of grace.
Rom 11:17 And if some of the branches were broken off, and you, being a wild olive tree, were grafted in among them, and with them became a partaker of the root and fatness of the olive tree,
Only "some" of the Israelites were broken off of the tree in the verse above.
Throughout Romans 11 Paul deals with two different groups of Israelites, one faithful and one not.
We see this in Romans 11:1-5.
Paul ends the chapter in the same way with two different groups of "they" in Romans 11:28. One group of "they" rejected Christ and are enemies of the Gospel. There is another group of "they" who are the "election" who accept Christ.
Your claim that all of Israel rejected the Messiah falls apart in Romans 11:5.
.
All believers whether Jews [Israelis] or Gentiles, are grafted into the Root- God/Jesus - NOT - into Israel! The Church is NOT ANY PART of Israel. The only division in Israel, were the twins, Esau [Edom] and Jacob [Israel], the twins of Rebecca, recorded in Gen.25:19-34..
The Remnant of Israel
11 I ask then: Did God reject his people? By no means! I am an Israelite myself, a descendant of Abraham, from the tribe of Benjamin. [
Also a member of the Body of Christ, His Church] 2 God did not reject his people, whom he foreknew. Don’t you know what Scripture says in the passage about Elijah—how he appealed to God against Israel: 3 “Lord, they have killed your prophets and torn down your altars; I am the only one left, and they are trying to kill me”[
a]? 4 And what was God’s answer to him? “I have reserved for myself seven thousand who have not bowed the knee to Baal.”[
b] 5 So too, at the present time there is a remnant chosen by grace. 6 And if by grace, then it cannot be based on works; if it were, grace would no longer be grace.
[All of Israel rejected Jesus as their Messiah, except for a few thousand, resulting in God allowing the destruction of their temple and the city of Jerusalem, and scattering them throughout the world, in an 1,878 years of exile].
7 What then? What the people of Israel sought so earnestly they did not obtain. The elect among them did, but the others were hardened, 8 as it is written:
“God gave them a spirit of stupor,
eyes that could not see
and ears that could not hear,
to this very day.”[
c]
9 And David says:
“May their table become a snare and a trap,
a stumbling block and a retribution for them.
10 May their eyes be darkened so they cannot see,
and their backs be bent forever.”[
d]
Ingrafted Branches
11
Again I ask: Did they [Israel] stumble so as to fall beyond recovery? Not at all! Rather, because of their transgression, salvation has come to the Gentiles to make Israel envious. 12 But if their transgression means riches for the world, and their loss means riches for the Gentiles, how much greater riches will their full inclusion bring!
13 I am talking to you Gentiles. Inasmuch as I am the apostle to the Gentiles, I take pride in my ministry 14 in the hope that I may somehow arouse my own people to envy and save some of them. 15 For if their rejection brought reconciliation to the world, what will their acceptance be but life from the dead? 16 If the part of the dough offered as firstfruits is holy, then the whole batch is holy; if the root is holy, so are the branches.
17 If some of the branches have been broken off, and you, though a wild olive shoot, have been grafted in among the others and now share in the nourishing sap from the olive root
[God/Jesus Christ], 18 do not consider yourself to be superior to those other branches. If you do, consider this: You do not support the root, but the root supports you. 19 You will say then, “Branches were broken off so that I could be grafted in.” 20 Granted. But they were broken off because of unbelief, and you stand by faith. Do not be arrogant, but tremble. 21 For if God did not spare the natural branches, he will not spare you either.
22 Consider therefore the kindness and sternness of God: sternness to those who fell, but kindness to you, provided that you continue in his kindness. Otherwise, you also will be cut off. 23
And if they [Israel] do not persist in unbelief, they will be grafted in, for God is able to graft them in again. 24 After all, if you were cut out of an olive tree that is wild by nature, and contrary to nature were grafted into a cultivated olive tree, how much more readily will these, the natural branches, be grafted into their own olive tree!
All Israel Will Be Saved
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, 26 and in this way[e] all Israel will be saved. As it is written:
[All Israel will be saved at the second coming of Jesus as recorded in Zech.12:10 and 14:4-5].
“The deliverer will come from Zion;
he will turn godlessness away from Jacob.
27 And this is[
f] my covenant with them
when I take away their sins.”[
g]
28
As far as the gospel is concerned, they are enemies for your sake; but as far as election is concerned, they are loved on account of the patriarchs, 29 for God’s gifts and his call are irrevocable. 30 Just as you who were at one time disobedient to God have now received mercy as a result of their disobedience, 31 so they too have now become disobedient in order that they too may now[h] receive mercy as a result of God’s mercy to you. 32 For God has bound everyone over to disobedience so that he may have mercy on them all.
[Parenthetics and featuring mine]
Quasar92