Mark 8:18
Having eyes, do you not see? And having ears, do you not hear? And do you not remember?
Mark 4:12
that seeing they may see, and not perceive, and hearing they may hear, and not understand, lest at any time they should turn, and be forgiven.
Matthew 13:14-15
And in them is fulfilled the prophecy of Isaiah, which says; Hearing you shall hear and not understand, and seeing you shall see and not perceive;
John 12:40
He has blinded their eyes, and hardened their hearts, that they should not see with their eyes and understand with their hearts, and be converted, and I should cure them.
Acts 28:26-27
saying, Go to this people and say, Hearing you shall hear and not understand, and seeing you shall see and not perceive;
2 Peter 1:12
Wherefore I will not neglect always to remind you of these things, although you have known them, and have been established in the present truth.