Matthew 13:13

13:13 For this reason I speak to them in parables: Although they see they do not see, and although they hear they do not hear nor do they understand.

Mark 4:33-34

The Use of Parables

4:33 So with many parables like these, he spoke the word to them, as they were able to hear. 4:34 He did not speak to them without a parable. But privately he explained everything to his own disciples.