Exodus 9:12

And LORD hardened the heart of Pharaoh, and he did not hearken to them, as LORD had spoken to Moses.

Exodus 4:21

And LORD said to Moses, When thou go back into Egypt, see that thou do before Pharaoh all the wonders which I have put in thy hand, but I will harden his heart and he will not let the people go.

Exodus 7:13-14

And Pharaoh's heart was hardened, and he did not hearken to them, as LORD had spoken.

Psalm 81:11-12

But my people hearkened not to my voice, and Israel would none of me.

Revelation 16:10-11

And the fifth agent poured out his bowl upon the throne of the beast, and its kingdom became darkened, and they gnawed their tongues from the anguish.

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