'Refused' in the Bible

Then the LORD told Moses, "Pharaoh's heart is hard. He has refused to let the people go.

And when Pharaoh stubbornly refused to let us go, the LORD killed every firstborn in the land of Egypt, from the firstborn of humans to the firstborn of animals. Therefore, I sacrifice to the LORD every male that first opens the womb, but I redeem every firstborn of my sons.