Matthew 13:10-17 GNT
Then the disciples came to Jesus and asked him, “Why do you use parables when you talk to the people?” 11 Jesus answered, “The knowledge about the secrets of the Kingdom of heaven has been given to you, but not to them. 12 For the person who has something will be given more, so that he will have more than enough; but the person who has nothing will have taken away from him even the little he has. 13 The reason I use parables in talking to them is that they look, but do not see, and they listen, but do not hear or understand. 14 So the prophecy of Isaiah applies to them: ‘This people will listen and listen, but not understand; they will look and look, but not see, 15 because their minds are dull, and they have stopped up their ears and have closed their eyes. Otherwise, their eyes would see, their ears would hear, their minds would understand, and they would turn to me, says God, and I would heal them.’ 16 “As for you, how fortunate you are! Your eyes see and your ears hear. 17 I assure you that many prophets and many of God’s people wanted very much to see what you see, but they could not, and to hear what you hear, but they did not.
Mark 4:10-12 GNT
When Jesus was alone, some of those who had heard him came to him with the twelve disciples and asked him to explain the parables. 11 “You have been given the secret of the Kingdom of God,” Jesus answered. “But the others, who are on the outside, hear all things by means of parables, 12 so that, ‘They may look and look, yet not see; they may listen and listen, yet not understand. For if they did, they would turn to God, and he would forgive them.’”
Luke 8:9-10 GNT
His disciples asked Jesus what this parable meant, 10 and he answered, “The knowledge of the secrets of the Kingdom of God has been given to you, but to the rest it comes by means of parables, so that they may look but not see, and listen but not understand.