1 Kings 22:22

22And the Lord said to him, ‘By what means?’ And he said, ‘I will go out, and will be aa lying spirit in the mouth of all his prophets.’ And he said, ‘You are to entice him, and you shall succeed; go out and do so.’

Isaiah 6:10

10 bMake the heart of this people cdull,
Hebrew fat

and their ears heavy,
and blind their eyes;
elest they see with their eyes,
and hear with their ears,
and understand with their hearts,
and turn and be healed.”

John 12:40

40 f“He has blinded their eyes
and ghardened their heart,
lest they see with their eyes,
and understand with their heart, and turn,
and I would heal them.”

2 Corinthians 3:14

14But htheir minds were ihardened. For to this day, jwhen they read kthe old covenant, that same veil remains unlifted, because only through Christ is it taken away.
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