Exodus 11:8

And all these thy servants shall come down unto me, and bow down themselves unto me, saying, Get thee out, and all the people that follow thee, literally, under thy feet, under thy jurisdiction; and after that I will go out. And he went out from Pharaoh in a great anger. That was a just and holy indignation, for it is no small matter for unbelievers to reject the Word of the Lord. Pharaoh's time of grace was now coming to an end, and the wrath of the Lord would soon descend upon him.