'Harden' in the Bible

The Lord said to Moses, "When you go back to Egypt, see that you do before Pharaoh all the wonders I have put under your control. But I will harden his heart and he will not let the people go.

But I will harden Pharaoh's heart, and although I will multiply my signs and my wonders in the land of Egypt,

I will harden Pharaoh's heart, and he will chase after them. I will gain honor because of Pharaoh and because of all his army, and the Egyptians will know that I am the Lord." So this is what they did.

And as for me, I am going to harden the hearts of the Egyptians so that they will come after them, that I may be honored because of Pharaoh and his army and his chariots and his horsemen.