Exodus 7:13 And he hardened Pharaoh's heart, that he hearkened not unto them; as the LORD had said.

Exodus 8:15 But when Pharaoh saw that there was respite, he hardened his heart, and hearkened not unto them; as the LORD had said.

Exodus 8:32 And Pharaoh hardened his heart at this time also, neither would he let the people go.

Exodus 9:7 And Pharaoh sent, and, behold, there was not one of the cattle of the Israelites dead. And the heart of Pharaoh was hardened, and he did not let the people go.

Exodus 9:34 And when Pharaoh saw that the rain and the hail and the thunders were ceased, he sinned yet more, and hardened his heart, he and his servants.

Exodus 10:1 And the LORD said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I might shew these my signs before him:

Exodus 14:17 And I, behold, I will harden the hearts of the Egyptians, and they shall follow them: and I will get me honour upon Pharaoh, and upon all his host, upon his chariots, and upon his horsemen.

Exodus 9:34 And when Pharaoh saw that the rain and the hail and the thunders were ceased, he sinned yet more, and hardened his heart, he and his servants.

Exodus 9:35 And the heart of Pharaoh was hardened, neither would he let the children of Israel go; as the LORD had spoken by Moses.

Job 9:4 He is wise in heart, and mighty in strength: who hath hardened himself against him, and hath prospered?

Job 40:2 Shall he that contendeth with the Almighty instruct him? he that reproveth God, let him answer it.