Mark 4:10-13

ISV(i) 10 The Purpose of the Parables
When he was alone with the Twelve and those around him, they began to ask him about the parables. 11 He told them, “The secret about the kingdom of God has been given to you. But to those on the outside, everything comes in parables 12 so that ‘they may see clearly but not perceive, and they may hear clearly but not understand, otherwise they might turn around and be forgiven.’”
13 Jesus Explains the Parable about the Farmer
Then he told them, “You don’t understand this parable, so how can you understand any of the parables?