Exodus 4:23 And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, even thy firstborn. 10 I MC VC

Exodus 7:3 And I will harden Pharaoh’s heart, and multiply my signs and my wonders in the land of Egypt. 10 I MC VC

Exodus 7:13 And he hardened Pharaoh’s heart, that he hearkened not unto them; as the Lord had said. 10 I MC VC

Exodus 7:14 And the Lord said unto Moses, Pharaoh’s heart is hardened, he refuseth to let the people go. 10 I MC VC

Exodus 14:8 And the Lord hardened the heart of Pharaoh king of Egypt, and he pursued after the children of Israel: and the children of Israel went out with an high hand. 12 I MC VC