John 12:38-41 TNIV

38 This 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?"a1

References for John 12:38

39 For this reason they could not believe, because, as Isaiah says elsewhere:
40 "He has blinded their eyes and hardened their hearts, so they can neither see with their eyes, nor understand with their hearts, nor turn--and I would heal them."b2

References for John 12:40

41 Isaiah said this because he saw Jesus' glory3 and spoke about him.4

References for John 12:41