Jesus is quoting from Jeremiah and Isaiah.
Jer 6:9; Thus says the LORD of hosts, "They will thoroughly glean as the vine the remnant of Israel; Pass your hand again like a grape gatherer Over the branches."
Jer 6:10; To whom shall I speak and give warning That they may hear? Behold, their ears are closed And they cannot listen. Behold, the word of the LORD has become a reproach to them; They have no delight in it.
Jer 6:11; But I am full of the wrath of the LORD; I am weary with holding it in. "Pour it out on the children in the street And on the gathering of young men together; For both husband and wife shall be taken, The aged and the very old.
Jer 6:12; "Their houses shall be turned over to others, Their fields and their wives together; For I will stretch out My hand Against the inhabitants of the land," declares the LORD.
Jer 6:13; "For from the least of them even to the greatest of them, Everyone is greedy for gain, And from the prophet even to the priest Everyone deals falsely.
Jer 6:14; "They have healed the brokenness of My people superficially, Saying, 'Peace, peace,' But there is no peace.
The Purpose of the Parables
Matt 13:10; And the disciples came and said to Him, "Why do You speak to them in parables?"
Matt 13:11; Jesus answered them, "To you it has been granted to know the mysteries of the kingdom of heaven, but to them it has not been granted.
Matt 13:12; "For whoever has, to him more shall be given, and he will have an abundance; but whoever does not have, even what he has shall be taken away from him.
Matt 13:13; "Therefore I speak to them in parables; because while seeing they do not see, and while hearing they do not hear, nor do they understand.
Matt 13:14; "In their case the prophecy of Isaiah is being fulfilled, which says, 'YOU WILL KEEP ON HEARING, BUT WILL NOT UNDERSTAND; YOU WILL KEEP ON SEEING, BUT WILL NOT PERCEIVE;
Matt 13:15; FOR THE HEART OF THIS PEOPLE HAS BECOME DULL, WITH THEIR EARS THEY SCARCELY HEAR, AND THEY HAVE CLOSED THEIR EYES, OTHERWISE THEY WOULD SEE WITH THEIR EYES, HEAR WITH THEIR EARS, AND UNDERSTAND WITH THEIR HEART AND RETURN, AND I WOULD HEAL THEM.'
Acts 28:27; FOR THE HEART OF THIS PEOPLE HAS BECOME DULL, AND WITH THEIR EARS THEY SCARCELY HEAR, AND THEY HAVE CLOSED THEIR EYES; OTHERWISE THEY MIGHT SEE WITH THEIR EYES, AND HEAR WITH THEIR EARS, AND UNDERSTAND WITH THEIR HEART AND RETURN, AND I WOULD HEAL THEM."'
John 12:37; But though He had performed so many signs before them, yet they were not believing in Him.
John 12:38; This was to fulfill the word of Isaiah the prophet which he spoke: "LORD, WHO HAS BELIEVED OUR REPORT? AND TO WHOM HAS THE ARM OF THE LORD BEEN REVEALED?"
John 12:39; For this reason they could not believe, for Isaiah said again,
John 12:40 "HE HAS BLINDED THEIR EYES AND HE HARDENED THEIR HEART, SO THAT THEY WOULD NOT SEE WITH THEIR EYES AND PERCEIVE WITH THEIR HEART, AND BE CONVERTED AND I HEAL THEM."
John 12:41; These things Isaiah said because he saw His glory, and he spoke of Him.
Isa 53:1; Who has believed our message? And to whom has the arm of the LORD been revealed?
Isa 6:9; He said, "Go, and tell this people: 'Keep on listening, but do not perceive; Keep on looking, but do not understand.'
Isa 6:10; "Render the hearts of this people insensitive, Their ears dull, And their eyes dim, Otherwise they might see with their eyes, Hear with their ears, Understand with their hearts, And return and be healed."
Isa 6:11; Then I said, "Lord, how long?" And He answered, "Until cities are devastated and without inhabitant, Houses are without people And the land is utterly desolate,
Jer 5:21; 'Now hear this, O foolish and senseless people, Who have eyes but do not see; Who have ears but do not hear.
Jer 5:22; 'Do you not fear Me?' declares the LORD. 'Do you not tremble in My presence? For I have placed the sand as a boundary for the sea, An eternal decree, so it cannot cross over it. Though the waves toss, yet they cannot prevail; Though they roar, yet they cannot cross over it.
Jer 5:23; 'But this people has a stubborn and rebellious heart; They have turned aside and departed.