John 12:40

He hath blinded their eyes, and hardened their heart, that they might not see with their eyes, and understand with their heart, and be converted, and I should heal them.

Acts 28:26

saying, Go to this people and say, Ye shall hear by the hearing of the ear, and not understand; and in seeing ye shall see, and not perceive: for the heart of this people is stupified,

Romans 11:8

(according as it is written, God hath given them a spirit of slumber, that their eyes could not see and their ears could not hear,) even unto this day.

Matthew 13:13-15

for this reason I speak to them in parables; because though they see, they will not see; and though they hear, they will not hear, nor understand.

Mark 8:18

Have ye eyes, and do not see? and having ears, hear ye not? and do ye not remember?

Treasury of Scripture Knowledge

Summary

Hear now this, O foolish people, and without understanding; which have eyes, and see not; which have ears, and hear not:

General references

Bible References

O foolish

Matthew 13:13
for this reason I speak to them in parables; because though they see, they will not see; and though they hear, they will not hear, nor understand.
John 12:40
He hath blinded their eyes, and hardened their heart, that they might not see with their eyes, and understand with their heart, and be converted, and I should heal them.
Acts 28:26
saying, Go to this people and say, Ye shall hear by the hearing of the ear, and not understand; and in seeing ye shall see, and not perceive: for the heart of this people is stupified,
Romans 11:8
(according as it is written, God hath given them a spirit of slumber, that their eyes could not see and their ears could not hear,) even unto this day.

General references

Matthew 13:13
for this reason I speak to them in parables; because though they see, they will not see; and though they hear, they will not hear, nor understand.