Isa 6:9-10, Mt 13:14-15, Mk 4:11-12, Lk 8:10, Jn 12:39-41, Acts 28:26-27, Rom 11:7-10
In the Old Testament, it was prophesied that the people of Israel would not recognize Christ when He came. (Deut 29:4, Isa 6:9-10)
Deut 29:4 Yet the Lord hath not given you an heart to perceive, and eyes to see, and ears to hear, unto this day.
Isa 6:9 And he said, Go, and tell this people, Hear ye indeed, but understand not; and see ye indeed, but perceive not. 10 Make the heart of this people fat, and make their ears heavy, and shut their eyes; lest they see with their eyes, and hear with their ears, and understand with their heart, and convert, and be healed.
As prophesied in the Old Testament, the Israelites did not recognize Christ when Christ came. (Matthew 13:14-15, Mark 4:11-12, Luke 8:10, John 12:39-41, Acts 28:26-27, Romans 11:7-10)
Matthew 13:14 And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive: 15 For this people's heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes and hear with their ears, and should understand with their heart, and should be converted, and I should heal them.
Mark 4:11 And he said unto them, Unto you it is given to know the mystery of the kingdom of God: but unto them that are without, all these things are done in parables: 12 That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and their sins should be forgiven them.
Luke 8:10 And he said, Unto you it is given to know the mysteries of the kingdom of God: but to others in parables; that seeing they might not see, and hearing they might not understand.
John 12:39 Therefore they could not believe, because that Esaias said again, 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. 41 These things said Esaias, when he saw his glory, and spake of him.
Acts 28:26 Saying, Go unto this people, and say, Hearing ye shall hear, and shall not understand; and seeing ye shall see, and not perceive: 27 For the heart of this people is waxed gross, and their ears are dull of hearing, and their eyes have they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and should be converted, and I should heal them.
Romans 11:7 What then? Israel hath not obtained that which he seeketh for; but the election hath obtained it, and the rest were blinded. 8 (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. 9 And David saith, Let their table be made a snare, and a trap, and a stumblingblock, and a recompence unto them: 10 Let their eyes be darkened, that they may not see, and bow down their back alway.
But we came to know and believe that Jesus is the Christ. (Mt 16:16)
Mt 16:16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.