Exodus 9:34
But when Pharaoh saw that the rain and the hail and the thunder had ceased, he sinned yet again and hardened his heart, he and his servants.
Exodus 7:14
Then the LORD said to Moses, "Pharaoh's heart is hardened; he refuses to let the people go.
Exodus 4:21
And the LORD said to Moses, "When you go back to Egypt, see that you do before Pharaoh all the miracles that I have put in your power. But I will harden his heart, so that he will not let the people go.
Exodus 8:15
But when Pharaoh saw that there was a respite, he hardened his heart and would not listen to them, as the LORD had said.
2 Chronicles 28:22
In the time of his distress he became yet more faithless to the LORD--this same King Ahaz.
2 Chronicles 33:23
And he did not humble himself before the LORD, as Manasseh his father had humbled himself, but this Amon incurred guilt more and more.
2 Chronicles 36:13
He also rebelled against King Nebuchadnezzar, who had made him swear by God. He stiffened his neck and hardened his heart against turning to the LORD, the God of Israel.
Ecclesiastes 8:11
Because the sentence against an evil deed is not executed speedily, the heart of the children of man is fully set to do evil.
Romans 2:4-5
Or do you presume on the riches of his kindness and forbearance and patience, not knowing that God's kindness is meant to lead you to repentance?