Why have you hardened your hearts, just as Egypt and Pharaoh hardened their hearts? After he was struck, did he not then release them, and they went away?
Therefore, Moses and Aaron entered to Pharaoh, and they said to him: "Thus says the Lord God of the Hebrews: How long will you be unwilling to be subject to me? Release my people to sacrifice to me.
Then I will harden the heart of the Egyptians, so as to pursue you. And I will be glorified in Pharaoh, and in all his army, and in his chariots, and in his horsemen.
And the Egyptians, pursuing them, went in after them, along with all of the horses of Pharaoh, his chariots and horsemen, through the midst of the sea.
And the Lord said to him, as he was returning to Egypt: "See that you accomplish, in the sight of Pharaoh, all the wonders that I have placed in your hand. I will harden his heart, and he will not release the people.
But it was for this reason that I appointed you, so that I may reveal my strength by you, and so that my name may be described throughout all the earth.
But in accord with your hard and impenitent heart, you store up wrath for yourself, unto the day of wrath and of revelation by the just judgment of God.