'Harden' in the Bible

The Lord instructed Moses, “When you go back to Egypt, make sure you do all the wonders before Pharaoh that I have put within your power. But I will harden his heart so that he won’t let the people go.

But I will harden Pharaoh’s heart and multiply My signs and wonders in the land of Egypt.

I will harden Pharaoh’s heart so that he will pursue them. Then I will receive glory by means of Pharaoh and all his army, and the Egyptians will know that I am Yahweh.” So the Israelites did this.

I am going to harden the hearts of the Egyptians so that they will go in after them, and I will receive glory by means of Pharaoh, all his army, and his chariots and horsemen.