Mark 4:10-15

And when he was alone, they that were about him with the twelve asked of him the parables. And he said unto them, Unto you is given the mystery of the kingdom of God: but unto them that are without, all things are done in parables: that seeing they may see, and not perceive; and hearing they may hear, and not understand; lest haply they should turn again, and it should be forgiven them. And he saith unto them, Know ye not this parable? and how shall ye know all the parables? The sower soweth the word. And these are they by the way side, where the word is sown; and when they have heard, straightway cometh Satan, and taketh away the word which hath been sown in them.