John 8:27
They didn't understand that he spoke to them about the Father.
Isaiah 6:9
He said, "Go, and tell this people, 'You hear indeed, but don't understand; and you see indeed, but don't perceive.'
Isaiah 42:18-20
"Hear, you deaf, and look, you blind, that you may see.
Isaiah 59:10
We grope for the wall like the blind; yes, we grope as those who have no eyes: we stumble at noonday as in the twilight; among those who are lusty we are as dead men.
John 8:43
Why don't you understand my speech? Because you can't hear my word.
John 8:47
He who is of God hears the words of God. For this cause you don't hear, because you are not of God."
Romans 11:7-10
What then? That which Israel seeks for, that he didn't obtain, but the chosen ones obtained it, and the rest were hardened.
2 Corinthians 4:3-4
Even if our Good News is veiled, it is veiled in those who perish;