that the word of Isaiah the prophet might be fulfilled, which he spoke: "Lord, who has believed our report? And to whom has the arm of the LORD been revealed?"
John 12:38
Surrounding context
12:37 But although He had done so many signs before them, they did not believe in Him,
12:38 that the word of Isaiah the prophet might be fulfilled, which he spoke: "Lord, who has believed our report? And to whom has the arm of the LORD been revealed?"
12:39 Therefore they could not believe, because Isaiah said again: