John 12:38-40

38that the word of the prophet Esaias which he said might be fulfilled, Lord, who has believed our report? and to whom has the arm of the Lord been revealed?

39On this account they could not believe, because Esaias said again,

40He has blinded their eyes and hardened their heart, that they may not see with their eyes, and understand with their heart and be converted, and I should heal them.