John 12:37-41 (New International Version)

The Jews Continue in Their Unbelief

 ³⁷Even after Jesus had done all these miraculous signs in their presence, they still would not believe in him. ³⁸This was to fulfill the word of Isaiah the prophet:
   "Lord, who has believed our message
      and to whom has the arm of the Lord been revealed?"^[a]

 ³⁹For this reason they could not believe, because, as Isaiah says elsewhere:
 ⁴⁰"He has blinded their eyes
      and deadened their hearts,
   so they can neither see with their eyes,
      nor understand with their hearts,
      nor turn—and I would heal them."^{[b] 41}Isaiah said this because he saw Jesus' glory and spoke about him.