Acts 28:26

saying, 'Go to this people and say, "you will be ever hearing, but will never understand; and you will be ever seeing, but will never perceive.

Matthew 13:14-15

In them is fulfilled the prophecy of Isaiah which says: 'Hearing you will hear and shall not understand; and seeing you will see and not perceive.

Mark 4:12

so that 'seeing they may see but not perceive, and hearing may hear but not understand; lest they should turn again, and be forgiven.'"

Luke 8:10

he said, "To you it has been given to know the secrets of the kingdom of God; but to others it is given in parables, so that 'Seeing they may not see, and hearing they may not understand.'

Mark 8:17-18

Being aware of it, Jesus said to them, "Why do you discuss the fact that you have no bread? Do you not yet perceive or understand? Are your hearts hardened?

Luke 24:25

And he said to them, "O foolish men, and slow of heart to believe all that the prophets have spoken!

Luke 24:45

Then he opened their minds, so they could understand the Scriptures.

John 12:38-40

that the word of Isaiah the prophet might be fulfilled, which he spoke: "Lord, who has believed our report? And to whom has the arm of the Lord been revealed?"

Romans 11:8-10

as it is written: "God gave them a spirit of stupor, eyes that they should not see and ears that they should not hear, down to this very day."

2 Corinthians 4:4-6

In their case the god of this world has blinded the minds of the unbelievers, so that they might not see the light of the gospel of the glory of Christ, who is the image of God.

Treasury of Scripture Knowledge

Summary

Saying, Go unto this people, and say, Hearing ye shall hear, and shall not understand; and seeing ye shall see, and not perceive:

Bible References

Hearing

Mark 8:17
Being aware of it, Jesus said to them, "Why do you discuss the fact that you have no bread? Do you not yet perceive or understand? Are your hearts hardened?
Luke 24:25
And he said to them, "O foolish men, and slow of heart to believe all that the prophets have spoken!
2 Corinthians 4:4
In their case the god of this world has blinded the minds of the unbelievers, so that they might not see the light of the gospel of the glory of Christ, who is the image of God.