John 12:39
For this cause they could not believe, for Isaiah said again,
John 5:44
How can you believe, who receive glory from one another, and you do not seek the glory that comes from the only God?
Isaiah 6:9-10
He said, "Go, and tell this people, 'You hear indeed, but do not understand; and you see indeed, but do not perceive.'
Isaiah 44:18-20
They do not know, neither do they consider: for he has shut their eyes, that they can't see; and their hearts, that they can't understand.
John 6:44
No one can come to me unless the Father who sent me draws him, and I will raise him up in the last day.
John 10:38
But if I do them, though you do not believe me, believe the works; that you may know and understand that the Father is in me, and I in the Father."
2 Peter 2:14
having eyes full of adultery, and who cannot cease from sin; enticing unsettled souls; having a heart trained in greed; children of cursing;