And the Lord said to him as he was returning into Egypt: See that thou do all the wonders before Pharao, which I have put in thy hand. I shall harden his heart, and he will not let the people go.
And I shall harden his heart, and he will pursue you; and I shall be glorified in Pharao, and in all his army: and the Egyptians shall know that I am the Lord. And they did so.
And the rest of the men, who were not slain by these plagues, did not do penance from the works of their hands, that they should not adore devils, and idols of gold, and silver, and brass, and stone, and wood, which neither can see, nor hear, nor walk:
And Moses and Aaron did all the wonders that are written, before Pharao. And the Lord hardened Pharao's heart: neither did he let the children of Israel go out of his land.