Exodus 9:12

And the LORD hardened the heart of Pharaoh, and he hearkened not unto them; as the LORD had spoken unto Moses.

Exodus 4:21

And the LORD said unto Moses, When thou goest to return into Egypt, see that thou do all those wonders before Pharaoh, which I have put in thine hand: but I will harden his heart, that he shall not let the people go.

Exodus 7:13-14

And he hardened Pharaoh's heart, that he hearkened not unto them; as the LORD had said.

Psalm 81:11-12

But my people would not hearken to my voice; and Israel would none of me.

Revelation 16:10-11

And the fifth angel poured out his vial upon the seat of the beast; and his kingdom was full of darkness; and they gnawed their tongues for pain,

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