Matthew 13:

12. For whosoever hath, to him shall be given, and he shall have more abundance: but whosoever hath not, from him shall be taken away even that he hath.
13. Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.
14. And 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:
15. For 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.
16. But blessed are your eyes, for they see: and your ears, for they hear.
17. For verily I say unto you, That many prophets and righteous men have desired to see those things which ye see, and have not seen them; and to hear those things which ye hear, and have not heard them.

Mark 3:

1. And he began again to teach by the sea side: and there was gathered unto him a great multitude, so that he entered into a ship, and sat in the sea; and the whole multitude was by the sea on the land.
2. And he taught them many things by parables, and said unto them in his doctrine,

Mark 3:

9. And he said unto them, He that hath ears to hear, let him hear.
10. And when he was alone, they that were about him with the twelve asked of him the parable.
11. And 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:
12. That 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.
13. And he said unto them, Know ye not this parable? and how then will ye know all parables?
14. The sower soweth the word.
15. And these are they by the way side, where the word is sown; but when they have heard, Satan cometh immediately, and taketh away the word that was sown in their hearts.
16. And these are they likewise which are sown on stony ground; who, when they have heard the word, immediately receive it with gladness;
17. And have no root in themselves, and so endure but for a time: afterward, when affliction or persecution ariseth for the word's sake, immediately they are offended.
18. And these are they which are sown among thorns; such as hear the word,
19. And the cares of this world, and the deceitfulness of riches, and the lusts of other things entering in, choke the word, and it becometh unfruitful.
20. And these are they which are sown on good ground; such as hear the word, and receive it, and bring forth fruit, some thirtyfold, some sixty, and some an hundred.

Mark 4:

33. And with many such parables spake he the word unto them, as they were able to hear it.
34. But without a parable spake he not unto them: and when they were alone, he expounded all things to his disciples.

1 Corinthians 2:

7. But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
8. Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
9. But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him.
10. But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God.
11. For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God.
12. Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God.
13. Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.
14. But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
15. But he that is spiritual judgeth all things, yet he himself is judged of no man.
16. For who hath known the mind of the Lord, that he may instruct him? But we have the mind of Christ.

1 Corinthians 3:

1. And I, brethren, could not speak unto you as unto spiritual, but as unto carnal, even as unto babes in Christ.
2. I have fed you with milk, and not with meat: for hitherto ye were not able to bear it, neither yet now are ye able.

"But without a parable spake he not unto them: and when they were alone, he expounded all things to his disciples."