John 12:40
"He hath blinded their eyes, and hardened their hearts; lest they should see with their eyes, and understand with the heart, and be converted, and I should heal them."
Matthew 13:13-15
Therefore I speak to them in parables: that seeing, they may not see; and hearing, they may not hear nor understand.
Mark 4:12
That seeing they may see, yet not perceive; and hearing may hear, yet not understand; lest at any time they should be converted, and their sins be forgiven them.
Luke 8:10
And he said, To you it is given to know the mysteries of the kingdom of God; but to the rest in parables: that seeing they may not perceive, and hearing may not comprehend.
Matthew 15:14
Leave them to themselves: they are blind leaders of the blind. But if the blind lead the blind, they will both fall into the pit.
Mark 6:52
For they reflected not upon the loaves, for their heart was hardened.
Mark 8:17-18
And Jesus knowing it said unto them, Why reason ye together, because ye have no loaves? Do ye not yet consider, nor understand? Have ye your heart yet hardened?
Luke 4:18
"The spirit of the Lord is upon me, for the work whereunto he hath anointed me; he hath sent me to preach glad tidings to the poor; to heal the contrite in heart; to proclaim liberty to the captives; and restore sight to the blind; to send forth the bruised free from bonds;
John 9:39
And Jesus said, For judgment I am come into this world, that they who see not may see; and they who see become blind.
Acts 3:19
Repent ye therefore, and be converted, that your sins may be blotted out, when refreshing seasons shall come from the presence of the Lord;
Acts 15:3
They therefore being sent on their way by the church, passed through Phoenicia and Samaria, giving a particular narrative of the conversion of the Gentiles: and they gave great joy to all the brethren.
Acts 28:26
saying, Go to this people, and say, "In hearing ye shall hear, and shall not understand; and seeing ye shall see, yet in nowise perceive.
Romans 9:18
Well then, he hath mercy on whom he will, but whom he will he hardeneth.
Romans 11:7-11
What then is the result? Israel hath not obtained that which it seeketh; but the election hath obtained it, and the rest were blinded,
James 5:19-20
Brethren, if any man among you should have erred from the truth, and one convert him;