Skandelon said:
In the OT God hardened or blinded Pharaoh from the clear truth in order to accomplish the first passover.
We need to be clear that Pharaoh also hardened his own heart (Exod 8:15, 32; 9:34). The sin was his. He was not longing to let the Israelites go if only God had allowed him.
In the same way, in the NT God is hardening Israel from the clear truth in order to accomplish the real Passover.
In the same way it is/was the Jews own fault that they would not come to Christ (Acts 13:46), and of course not all Jews rejected Him (Acts 14:1).
It all makes since when you read Romans 8, 9, 10, and 11 as one whole passage that flows together. Paul explains it all very clearly.
Actually, it's all very difficult and far greater men than you or me have struggled with it. I don't think the way you are putting it is correct. Paul is teaching that there is a 'spiritual' Israel (Rom 9:6) comprised of both Jew and Gentile (v8)
'For there is no distinction between Jew and Gentile, for the same Lord over all is rich to all who call on Him, for, "Whoever calls on the name of the LORD shall be saved"' (vs12-13).
Paul taught that God was patient with Israel for years ('holding out his hands to them' Rm 10:21), but they were unwilling, so they are being "cut off", "bound over to disobedience," "hardened," but are they cut off for good? Heaven FORBID! This is "temporary" and Paul has hope for their salvation as a result of his ministry to the Gentiles and the Jews growing jealous (Rm 11:14).
From 10:21, Paul is speaking of Israel as a nation, and from this nation there is an elect people who will be saved (11:4-5). But the Gospel has gone out into all the world and Israel as a nation has no privileges over and above the Gentiles who have been grafted in (11:22-23).
This is not about God hardening certain reprobates and saving a select number of people.
Actually, it's all about that (9:18 etc).
It's about God blinding Israel in their rebellion so as to ingraft the gentiles, but even that blinding process is an act of mercy, because in being "cut off/hardened" they may be provoked to envy and saved.
It's about Jew and Gentile believers being one people and the Gentiles not looking down on the Jews because many of them don't believe (11:17-21) because it may well be that many of them will come to faith in God's good time (11:24)
Paul summarizes this truth at the end of the discourse saying, "God bound all men over to disobedience so that He may have mercy on them all."
Exactly so. All men, both Jew and Gentile, have sinned (Rom 3:23) and are by nature disobedient to God, but God has arranged things so that He may display His mercy on a vast crowd of all peoples, both Jews and Gentiles.
Therefore I don't believe that you have explained away the very clear implication of verses like Rom 9:6-14.
[I have left on one side the question of 11:26 since you have not mentioned it]
Steve