Matthew 13:13-15

13For this reason I speak to them in parables, because seeing they do not see, and hearing they do not hear nor do they understand.

14”And in them the prophecy of Isaiah is being fulfilled, which says, ‘You will keep on hearing but will never understand; you will keep looking, but will never see.

15For the heart of this people has become dull, their ears can barely hear, and they have shut their eyes. Otherwise they might see with their eyes, hear with their ears, and understand with their hearts. Then they would turn back, and I would heal them.’