Matthew 13:13-15

Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand. And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; And seeing ye shall see, and shall not perceive: For this people's heart is waxed gross, And their ears are dull of hearing, And their eyes they have closed; Lest at any time they should see with their eyes, And hear with their ears, And should understand with their heart, And should be converted, and I should heal them.