Why then do you harden your hearts, as the Egyptians and Pharaoh hardened their hearts? when he had worked wonderfully among them, did they not let the people go, and they departed?
And Moses and Aaron came in unto Pharaoh, and said unto him, Thus says the LORD God of the Hebrews, How long will you refuse to humble yourself before me? let my people go, that they may serve me.
And I, behold, I will harden the hearts of the Egyptians, and they shall follow them: and I will get honor over Pharaoh, and over all his host, over his chariots, and over his horsemen.
And the LORD said unto Moses, When you go to return into Egypt, see that you do all those wonders before Pharaoh, whom I have put in your hand: but I will harden his heart, that he shall not let the people go.
But according to your hardness and unrepentant heart treasure up unto yourself wrath against the day of wrath and revelation of the righteous judgment of God;