13 Therefore do I speak to them in parables: because seeing they see not, and hearing they hear not, neither do they understand.
14 And the prophecy of Isaias is fulfilled in them, who saith: By hearing you shall hear, and shall not understand: and seeing you shall see, and shall not perceive.
15 For the heart of this people is grown gross, and with their ears they have been dull of hearing, and their eyes they have shut: lest at any time they should see with their eyes, and hear with their ears, and understand with their heart, and be converted, and I should heal them.