FIC, funny that you should mention Israel, whom God hardened so that the Gentiles might be saved. God gave the Israels a "spirit of stupor" so they would continue to sin. But some he did not--according to his gracious choice.
Romans 11 (NASB)
4 But what is the divine response to him? "(
8) I HAVE KEPT for Myself SEVEN THOUSAND MEN WHO HAVE NOT BOWED THE KNEE TO BAAL."
5 In the same way then, there has also come to be at the present time (
9) a remnant according to God's gracious choice.
6 But (
10) if it is by grace, it is no longer on the basis of works, otherwise grace is no longer grace.
7 What then? What (
11) Israel is seeking, it has not obtained, but those who were chosen obtained it, and the rest were (
12) hardened;
8 just as it is written,
"(
13) GOD GAVE THEM A SPIRIT OF STUPOR,
EYES TO SEE NOT AND EARS TO HEAR NOT,
DOWN TO THIS VERY DAY."
9 And David says,
"(
14) LET THEIR TABLE BECOME A SNARE AND A TRAP,
AND A STUMBLING BLOCK AND A RETRIBUTION TO THEM.
10
"(
15) LET THEIR EYES BE DARKENED TO SEE NOT,
AND BEND THEIR BACKS FOREVER."
11 (
16) I say then, they did not stumble so as to fall, did they? (
17) May it never be! But by their transgression (
18) salvation has come to the Gentiles, to (
19) make them jealous.