Romans 11:8
as it is written: "God gave them a spirit of slumber, eyes that were not to see, and ears that were not to hear, unto this day."
Matthew 13:13-14
Therefore I speak to them in parables, because seeing they see not, and hearing they hear not, nor understand.
Mark 4:11-12
And he said to them, To you hath been given the mystery of the kingdom of God; but to them, who are without, all things are done in parables; t
Luke 8:10
And he said, To you it hath been given to know the mysteries of the kingdom of God; but to others [these things are spoken] in parables; that while seeing they may not see, and while hearing they may not understand.
Acts 28:26
saying, "Go to this people, and say, Hearing ye shall hear, and shall not understand; and seeing ye shall see and not perceive.
2 Corinthians 3:14-15
But their understandings were blinded; for until this day, when the old covenant is read, the same veil remaineth, since it is not unveiled to them that it is done away in Christ;