That seeing they may see Which the end and reason of his speaking to them in parables. The passage referred to is in ( Isaiah 6:9Isaiah 6:10 ) . (See Gill on Matthew 13:14). (See Gill on Matthew 13:15).
10
And when he was by himself, the twelve that were with him asked him to expound the parable.
11
And he said to them, To you it is given to know the private of the kingdom of God [To you it is given to know the mystery, or private, of the kingdom of God]. But to them that be withoutforth, all things be made in parables,
12
that they seeing see, and see not, and they hearing hear, and understand not; lest [that] sometime they be converted, and sins be forgiven to them.
13
And he said to them, Know not ye this parable? and how ye shall know all parables?