Mateus 13

13 This is the reason I speak to the crowds in parables: because while [having the power of] seeing they do not see, and while [having the power of] hearing they do not hear, nor do they understand and grasp [spiritual things]. 14 In them the prophecy of Isaiah is being fulfilled, which says,

‘You will hearandkeep on hearing, but never understand;

And you will lookandkeep on looking, but never comprehend;

15 For this nation’s heart has grown hard,

And with their ears they hardly hear,

And they have [tightly] closed their eyes,

Otherwise they would see with their eyes,

And hear with their ears,

And understand with their heart, and turn [to Me]

And I would heal them [spiritually].’ [Is 6:9]