Matthew 13:10-15

Then the disciples came to Him and asked, “Why do You speak to the crowds in parables?” Jesus replied to them, “To you it has been granted to know the mysteries of the kingdom of heaven, but to them it has not been granted. [Mark 4:11] For whoever has [spiritual wisdom because he is receptive to God’s word], to him more will be given, and he will be richly and abundantly supplied; but whoever does not have [spiritual wisdom because he has devalued God’s word], even what he has will be taken away from him. [Matt 25:29; Mark 4:25; Luke 8:18] This is the reason I speak to the crowds in parables: because while [having the power of] seeing they do not see, and while [having the power of] hearing they do not hear, nor do they understand and grasp [spiritual things]. In them the prophecy of Isaiah is being fulfilled, which says, ‘YOU WILL HEAR and KEEP ON HEARING, BUT NEVER UNDERSTAND; AND YOU WILL LOOK and KEEP ON LOOKING, BUT NEVER COMPREHEND; FOR THIS NATION’S HEART HAS GROWN HARD, AND WITH THEIR EARS THEY HARDLY HEAR, AND THEY HAVE [tightly]CLOSED THEIR EYES, OTHERWISE THEY WOULD SEE WITH THEIR EYES, AND HEAR WITH THEIR EARS, AND UNDERSTAND WITH THEIR HEART, AND TURN [to Me] AND I WOULD HEAL THEM [spiritually].’ [Is 6:9]