John 12:40
He has blinded their eyes, and hardened their hearts, that they should not see with their eyes and understand with their hearts, and be converted, and I should cure them.
Romans 9:18-20
He therefore has mercy on whom he will, and whom he will he hardens.
2 Thessalonians 2:11-12
And therefore, God sends them a power of delusion that they should believe a lie,
Treasury of Scripture Knowledge
Summary
O LORD, why hast thou made us to err from thy ways, and hardened our heart from thy fear? Return for thy servants' sake, the tribes of thine inheritance.
And hardened
Bible References
Why
2 Thessalonians 2:11
And therefore, God sends them a power of delusion that they should believe a lie,
And hardened
John 12:40
He has blinded their eyes, and hardened their hearts, that they should not see with their eyes and understand with their hearts, and be converted, and I should cure them.
Romans 9:18
He therefore has mercy on whom he will, and whom he will he hardens.