Matthew 13:14
“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 whosoever hath, to him shall be given, and he shall have more abundance: but whosoever hath not, from him shall be taken away even that he hath.
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.
But blessed are your eyes, for they see: and your ears, for they hear.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And he said, Go, and tell this people, Hear ye indeed, but understand not; and see ye indeed, but perceive not.”
“Having eyes, see ye not? and having ears, hear ye not? and do ye not remember?”
“And he said, Go, and tell this people, Hear ye indeed, but understand not; and see ye indeed, but perceive not.”
“They have not known nor understood: for he hath shut their eyes, that they cannot see; and their hearts, that they cannot understand.”
“Son of man, thou dwellest in the midst of a rebellious house, which have eyes to see, and see not; they have ears to hear, and hear not: for they are a rebellious house.”