7:14And Jehovah said to Moses, Pharaoh's heart is hardened: he refuseth to let the people go.

8:15And Pharaoh saw that there was respite; and he hardened his heart, and hearkened not to them, as Jehovah had said.

9:34And 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.

10:1And Jehovah said to Moses, Go in unto Pharaoh; for I have hardened his heart, and the heart of his bondmen, that I might do these my signs in their midst,