Why then do ye harden your hearts as the Egyptians and Pharaoh hardened their hearts? When he had wrought wonderfully among them, did they not let the people go, and they departed?
And I, behold, I will harden the hearts of the Egyptians, and they shall go in after them, and I will get for me honor upon Pharaoh, and upon all his army, upon his chariots, and upon his horsemen.
But according to thy hardness, and thy impenitent heart, thou store up wrath to thyself in the day of wrath, and revelation, and righteous judgment of God,
And Moses and Aaron went in to Pharaoh, and said to him, Thus says LORD, the God of the Hebrews, How long will thou refuse to humble thyself before me? Let my people go, that they may serve me.
And LORD said to Moses, When thou go back into Egypt, see that thou do before Pharaoh all the wonders which I have put in thy hand, but I will harden his heart and he will not let the people go.