Mark 4:13

but if, said he, you don't comprehend this easy parable, how can ye understand any of the rest?

as many as I love, I rebuke and chastise: be warm therefore with zeal, and repent.

Hear then the meaning of this parable of the sower.

Then Jesus said to them, have ye understood all this?

then Peter said to him, tell us the meaning of that expression.

which Jesus perceiving, he said, distrustful men, why do ye trouble your heads about forgetting the bread?

When he withdrew from the people into the house, his disciples ask'd him the meaning of that maxim.

now the meaning of the parable is this: the seed sown signifies the word of God.

then Jesus said to them, how stupidly incredulous are you not to believe things that have been all predicted by the prophets!

However, I could not speak to you, my brethren, as to the spiritual, or as to the dispassionate, but as to novices in christianity.

On this head we have many things to say, not easily to be comprehended, because of your prejudices.

Treasury of Scripture Knowledge

And he said unto them, Know ye not this parable? and how then will ye know all parables?

and he said, are you likewise so void of understanding? don't you perceive that what passes from without into a man cannot defile him?