John 12:37-41 New International Version Anglicized (NIVUK)

37. Even after Jesus had performed so many signs in their presence, they still would not believe in him.

38. This was to fulfil the word of Isaiah the prophet:‘Lord, who has believed our messageand to whom has the arm of the Lord been revealed?’

39. For this reason they could not believe, because, as Isaiah says elsewhere:

40. ‘He has blinded their eyesand hardened their hearts,so they can neither see with their eyes,nor understand with their hearts,nor turn – and I would heal them.’

41. Isaiah said this because he saw Jesus’ glory and spoke about him.

John 12