Matthew 12:34
Generation of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
Matthew 13:14-15
And in them is fulfilled the prophesy of Isaiah, which says: You shall surely hear, and you will not understand; and you shall surely see, and you will not perceive.
John 5:44
How can you believe who receive honor one from another, and seek not the honor that comes from God alone?
John 8:43
Why do you not know what I say? Because you can not understand my words.
John 12:39-40
For this reason they could not believe, because Isaiah said again:
Acts 14:16
who, in past generations, permitted all the nations to walk in their own ways;
Romans 1:21-23
because, when they knew God, they did not glorify him as God, nor were they thankful; but they became perverse in their reasonings, and their wicked heart was darkened;
Romans 1:28
And as they refused to acknowledge God, God delivered them up to an undiscerning mind, to do detestable things;
Romans 11:8-10
as it is written: God has given them a spirit of stupor, eyes with which they can not see, and ears with which they can not hear.
2 Corinthians 4:3-4
But if our gospel is vailed, it is vailed among the lost,
2 Thessalonians 2:9-12
he will destroy him, whose coming is, according to the energy of Satan, with all power and signs and wonders of falsehood,
2 Peter 2:14
having eyes that are full of the adulteress, and that can not cease from sin, deceiving unstable souls, having a heart exercised in covetousness, accursed children,