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].
“Because you have been given the chance to understand the secrets of the kingdom of Heaven,” replied Jesus, “but they have not. For when a man has something, more is given to him till he has plenty. But if he has nothing even his nothing will be taken away from him. This is why I speak to them in these parables; because they go through life with their eyes open, but see nothing, and with their ears open, but understand nothing of what they hear. They are the living fulfilment of Isaiah’s prophecy which says: ‘Hearing you will hear and shall not understand, and seeing you will see and not perceive; for the heart of this people has grown dull. Their ears are hard of hearing, and their eyes they have closed, lest they should see with their eyes and hear with their ears, lest they should understand with their heart and turn, so that I should heal them’.
“For to him who has will more be given,” he told them, “and he will have great plenty; but from him who has not, even the little he has will be taken away. That is why I use these illustrations, so people will hear and see but not understand.
He replied, “You’ve been given insight into God’s kingdom. You know how it works. Not everybody has this gift, this insight; it hasn’t been given to them. Whenever someone has a ready heart for this, the insights and understandings flow freely. But if there is no readiness, any trace of receptivity soon disappears. That’s why I tell stories: to create readiness, to nudge the people toward receptive insight. In their present state they can stare till doomsday and not see it, listen till they’re blue in the face and not get it. I don’t want Isaiah’s forecast repeated all over again: Your ears are open but you don’t hear a thing. Your eyes are awake but you don’t see a thing. The people are blockheads! They stick their fingers in their ears so they won’t have to listen; They screw their eyes shut so they won’t have to look, so they won’t have to deal with me face-to-face and let me heal them.