John 1:23
23 He said, “I am tthe voice of one crying out in the wilderness, ‘Make straight1 the way of the Lord,’ as the prophet Isaiah said.”
John 12:37–41
37 Though he had done so many signs before them, they still did not believe in him, 38 oso that the word spoken by the prophet Isaiah might be fulfilled:
p“Lord, who has believed what he heard from us,
and to whom has the arm of the Lord been revealed?”
39 Therefore they qcould not believe. For again Isaiah said,
40 r“He has blinded their eyes
and shardened their heart,
lest they see with their eyes,
and understand with their heart, and turn,
and I would heal them.”
41 Isaiah said these things because the saw his glory and uspoke of him.
