And he took up arms against King Nebuchadnezzar, though he had made him take an oath by God; but he made his neck stiff and his heart hard, turning away from the Lord, the God of Israel.
And the Lord said to Moses, When you go back to Egypt, see that you do before Pharaoh all the wonders which I have given you power to do: but I will make his heart hard and he will not let the people go.
So Moses went out of the town, and stretching out his hands made prayer to God: and the thunders and the ice-storm came to an end; and the fall of rain was stopped.
Why do you make your hearts hard, like the hearts of Pharaoh and the Egyptians? When he had made sport of them, did they not let the people go, and they went away?