¹² And the Lord hardened the heart of Pharaoh, and he hearkened not unto them; as the Lord had spoken unto Moses.

10 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:

²⁰ But the Lord hardened Pharaoh's heart, so that he would not let the children of Israel go.

²⁷ But the Lord hardened Pharaoh's heart, and he would not let them go.