Matthew 13:11,matthew 13:15,matthew 13:16

1 Corinthians 2:9-10 NIV
However, as it is written: “What no eye has seen, what no ear has heard, and what no human mind has conceived” — the things God has prepared for those who love him— these are the things God has revealed to us by his Spirit. The Spirit searches all things, even the deep things of God.

Ephesians 1:17-18 NIV
I keep asking that the God of our Lord Jesus Christ, the glorious Father, may give you the Spirit of wisdom and revelation, so that you may know him better. I pray that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in his holy people,

Isaiah 6:10 NIV
Make the heart of this people calloused; make their ears dull and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.”