John 12:37
King James Version
“But though he had done so many miracles before them, yet they believed not on him:”
Context
34The people answered him, We have heard out of the law that Christ abideth for ever: and how sayest thou, The Son of man must be lifted up? who is this Son of man?
35Then Jesus said unto them, Yet a little while is the light with you. Walk while ye have the light, lest darkness come upon you: for he that walketh in darkness knoweth not whither he goeth.
36While ye have light, believe in the light, that ye may be the children of light. These things spake Jesus, and departed, and did hide himself from them.
37But though he had done so many miracles before them, yet they believed not on him:
38That 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?
39Therefore they could not believe, because that Esaias said again,
40He hath blinded their eyes, and hardened their heart; that they should not see with eyes, nor understand with heart, and be converted, and I should heal them.