Exodus 9:34
And Pharaoh saw that the rain and the hail and the thunders had ceased, and he sinned yet more, and hardened his heart, he, and his bondmen.
Exodus 7:14
And Jehovah said to Moses, Pharaoh's heart is hardened: he refuseth to let the people go.
Exodus 4:21
And Jehovah said to Moses, When thou goest to return to Egypt, see that thou do all the wonders before Pharaoh that I have put in thy hand. And I will harden his heart, that he shall not let the people go.
Exodus 8:15
And Pharaoh saw that there was respite; and he hardened his heart, and hearkened not to them, as Jehovah had said.
2 Chronicles 28:22
And in the time of his trouble he transgressed yet more against Jehovah, this king Ahaz.
2 Chronicles 33:23
And he did not humble himself before Jehovah, as Manasseh his father had humbled himself; for he, Amon, multiplied trespass.
2 Chronicles 36:13
And he also rebelled against king Nebuchadnezzar, who had made him take oath by God; and he stiffened his neck, and hardened his heart from returning to Jehovah the God of Israel.
Ecclesiastes 8:11
Because sentence against an evil work is not executed speedily, therefore the heart of the children of men is fully set in them to do evil.
Romans 2:4-5
or despisest thou the riches of his goodness, and forbearance, and long-suffering, not knowing that the goodness of God leads thee to repentance?