Exodus 9:34
And when Pharaoh saw that the rain and the hail and the thunders were ceased, he persevered in his sin and hardened his heart, he and his slaves.
Exodus 7:14
Then the LORD said unto Moses, Pharaoh's heart is become grievous, for he refuses to let the people go.
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 8:15
But when Pharaoh saw that there was respite, he hardened his heart and did not hearken unto them as the LORD had said.
2 Chronicles 28:22
Furthermore, king Ahaz in the time of his distress trespassed even more against the LORD,
2 Chronicles 33:23
But he never humbled himself before the LORD as Manasseh, his father, humbled himself; to the contrary Amon multiplied the guilt.
2 Chronicles 36:13
He rebelled, likewise, against King Nebuchadnezzar, unto whom he had sworn by God; but he stiffened his neck and hardened his heart from turning unto the LORD God of Israel.
Ecclesiastes 8:11
Because the sentence against an evil work is not executed speedily, therefore the heart of the sons of men is fully set in them to do evil.
Romans 2:4-5
Or dost thou despise the riches of his goodness and forbearance and longsuffering, ignoring that the goodness of God leads thee to repentance?