13 Therefore speak I to them in parables: because seeing they see not; and hearing they hear not, neither do they understand.
14 And in them is fulfilled the prophecy of Isaiah, who said, By hearing you shall hear, and shall not understand; and seeing you shall see, and shall not perceive:
15 For this people's heart has become 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.