The Old Testament prophesied that God would blind people and harden their hearts so that they would not believe in Christ. (Isa 53:1, Rom 10:16, Isa 6:9-10)
Isa 53:1 Who hath believed our report? and to whom is the arm of the Lord revealed?
Rom 10:16 But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report?
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.
Jesus, the Christ, came to this earth, but people did not realize it. (Jn 1:5,10-11)
Jn 1:5 And the light shineth in darkness; and the darkness comprehended it not. 10 He was in the world, and the world was made by him, and the world knew him not. 11 He came unto his own, and his own received him not.
As the Old Testament prophesied, people did not believe that Jesus was the Christ. (Jn 12:37-43)
Jn 12:37 But though he had done so many miracles before them, yet they believed not on him: 38 That the saying of Esaias the prophet might be fulfilled, which he spake, Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed? 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. 42 Nevertheless among the chief rulers also many believed on him; but because of the Pharisees they did not confess him, lest they should be put out of the synagogue: 43 For they loved the praise of men more than the praise of God.