John 12:40

He has blinded their eyes and made their hearts insensible, to prevent them seeing with their eyes and understanding with their hearts and turning for me to cure them.

Acts 28:26

when he said, Go and tell this people, 'You will hear and hear but never understand, you will see and see but never perceive.'

Matthew 13:13-15

This is why I speak to them in parables, because for all their seeing they do not see and for all their hearing they do not hear or understand.

Mark 8:18

You have eyes, do you not see? you have ears, do you not hear?

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
This is why I speak to them in parables, because for all their seeing they do not see and for all their hearing they do not hear or understand.
John 12:40
He has blinded their eyes and made their hearts insensible, to prevent them seeing with their eyes and understanding with their hearts and turning for me to cure them.
Acts 28:26
when he said, Go and tell this people, 'You will hear and hear but never understand, you will see and see but never perceive.'

General references

Matthew 13:13
This is why I speak to them in parables, because for all their seeing they do not see and for all their hearing they do not hear or understand.