John 12:40 He hath blinded their eyes, and hardened their heart; that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them.
Romans 11:7-12 What then? Israel hath not obtained that which he seeketh for; but the election hath obtained it, and the rest were blinded (according as it is written, God hath given them the spirit of slumber, eyes that they should not see, and ears that they should not hear;) unto this day. And David saith, Let their table be made a snare, and a trap, and a stumblingblock, and a recompence unto them: let their eyes be darkened, that they may not see, and bow down their back alway. I say then, Have they stumbled that they should fall? God forbid: but rather through their fall salvation is come unto the Gentiles, for to provoke them to jealousy. Now if the fall of them be the riches of the world, and the diminishing of them the riches of the Gentiles; how much more their fulness?
Romans 11:25 For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
Most of talmudic judaism is corrupted with the tradition (Kabbalah, Zohar, Babylonian Mysticism) [Matthew 15:6; Mark 7:8-9; Col 2:8; 1 Peter 1:18] . They are currently blinded, mistake the darkness for light [Isaiah 5:20; John 12:35, Matthew 6:22-24], and the Gospel is a stumblingblock [1 Cor 1:23].
The current nation of Israel is a fulfillment of prophecy [Isaiah 66:8] and they are gathered together in unbelief in preparation for the rise of the false messiah [John 5:43].
Even so, we should always remember that those who bless Israel will be blessed, and those who curse Israel will be cursed. Pray daily for the peace of Jerusalem.
God has never abandoned or forgotten Israel. The God of Israel has always been faithful to keep a “remnant” of believing Jews to Himself. Many Jews are getting to know the Messiah spoken of in the Tanakh (Torah and Prophets) on a daily basis. Additionally, in the last days God will send 144,000 servants of God [Rev 7:3-8;Rev 14:3-5], two witnesses [Rev 11:3], and an angel proclaiming the Gospel [Rev 14:6].
Messiah Himself will return and establish His Kingdom here on earth as it is in heaven. He will rule over the whole earth from Jerusalem and Israel.