13 This is why I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand.

14 With them indeed is fulfilled the prophecy of Isaiah which says: You shall indeed hear but never understand, and you shall indeed see but never perceive.

15 For this people's heart has grown dull, and their ears are heavy of hearing, and their eyes they have closed, lest they should perceive with their eyes, and hear with their ears, and understand with their heart, and turn for me to heal them.'