Exodus 7:3 - Clarke's commentary and critical notes on the Bible

And I will harden Pharaoh's heart, and multiply my signs and my wonders in the land of Egypt. I will harden Pharaoh's heart - I will permit his stubbornness and obstinacy still to remain, that I may have the greater opportunity to multiply my wonders in the land, that the Egyptians may know that I only am Jehovah, the self-existent God. See Clarke's note on Exodus 4:21.