"16Jesus answered them, and said, My doctrine is not mine, but his that sent me. 17If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself."
https://biblehub.com/kjv/john/7.htm
"The Pharisee said to me, This Nazarene has deceived you badly, filled your ears with lies, closed your minds, and turned you from the traditions of your parents.
When I, John, heard this, I turned away from the temple and went to a mountainous and barren place. I was distressed within, and I said,
How was the savior selected?
Why was he sent into the world by his father?
Who is his father who sent him?
To what kind of eternal realm shall we go?
And what was he saying when he told us,
This eternal realm to which you will go is modeled
after the incorruptible realm,
but he did not teach us what kind of realm that one is?"
http://www.gnosis.org/naghamm/apocjn-meyer.html
"The Purpose of Jesus' Parables
(Matthew 13:10-17)
10And when he was alone, they that were about him with the twelve asked of him the parable. 11And he said unto them, Unto you it is given to know the mystery of the kingdom of God: but unto them that are without, all these things are done in parables: 12That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and their sins should be forgiven them."
https://biblehub.com/kjv/mark/4.htm
"13Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.
14And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive:
15For this people's heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes, and hear with their ears, and should understand with their heart, and should be converted, and I should heal them"
https://biblehub.com/kjv/matthew/13.htm
"The Unbelief of the People
37But though he had done so many miracles before them, yet they believed not on him: 38That the saying of Esaias the prophet might be fulfilled, which he spake, Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed? 39Therefore they could not believe, because that Esaias said again, 40He hath blinded their eyes, and hardened their heart; that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them. 41These things said Esaias, when he saw his glory, and spake of him."
https://biblehub.com/kjv/john/12.htm