Mark 4:10-12

As soon as He was alone, those who were around Him, together with the twelve [disciples], began asking Him about [the interpretation of] the parables. He said to them, “The mystery of the kingdom of God has been given to you [who have teachable hearts], but those who are outside [the unbelievers, the spiritually blind] get everything in parables, so that THEY WILL CONTINUALLY LOOK BUT NOT SEE, AND THEY WILL CONTINUALLY HEAR BUT NOT UNDERSTAND, OTHERWISE THEY MIGHT TURN [from their rejection of the truth]AND BE FORGIVEN.” [Is 6:9, 10; Matt 13:11-15]