Matthew 13:10-13 NIV

10 The disciples came to him and asked, "Why do you speak to the people in parables?"
11 He replied, "The knowledge of the secrets of the kingdom of heaven1 has been given to you,2 but not to them.

References for Matthew 13:11

12 Whoever has will be given more, and he will have an abundance. Whoever does not have, even what he has will be taken from him.3

References for Matthew 13:12

13 This is why I speak to them in parables: "Though seeing, they do not see; though hearing, they do not hear or understand.4

References for Matthew 13:13