Matthew 12:34
O ye generations of vipers, how are you, being evil, able to speak good things? for out of the abundance of the heart the mouth speaks.
Matthew 13:14-15
And the prophecy of Isaiah is fulfilled unto them, saying, By hearing ye shall hear, and may not understand; and seeing you shall see, and may not perceive.
John 5:44
How are you able to believe, receiving glory from one another, and do not seek the glory which is with God only?
John 8:43
Wherefore do you not understand my speech? Because you are not able to hear my word.
John 12:39-40
Wherefore were they not able to believe, because Isaiah again said,
Acts 14:16
who in bygone generations, suffered all nations to walk in their own ways;
Romans 1:21-23
because, knowing God, they did not glorify Him as God, neither were they thankful; but they became vain in their reasonings, and their foolish heart was darkened.
Romans 1:28
And as they did not approve to have God in their knowledge, God gave them up to a reprobate mind, to do those things which are inappropriate;
Romans 11:8-10
as has been written, God has given them the spirit of slumber, eyes that they should not see, and ears that they should not hear, unto this day.
2 Corinthians 4:3-4
But if indeed our gospel is hidden, it is hidden with those who are lost:
2 Thessalonians 2:9-12
whose coming is according to the energy of Satan in all power and signs and wonders of falsehood,
2 Peter 2:14
having eyes full of an adulteress, and unable to cease from sin; beguiling unestablished souls: having a heart which has been made fat with covetousness; children of the curse: