21 Then Jehovah said to Moses: “After you have returned to Egypt, see that you perform before Pharʹaoh all the miracles that I have empowered you to do.+ But I will allow his heart to become obstinate,+ and he will not send the people away.+

4 I will allow Pharʹaoh’s heart to become obstinate,+ and he will chase after them, and I will glorify myself by means of Pharʹaoh and all his army;+ and the Egyptians will certainly know that I am Jehovah.”+ So that is what they did.