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.+

13 Then Jehovah did as Moses asked, and the frogs began to die in the houses, the courtyards, and the fields.

15 When Pharʹaoh saw that there was relief, he hardened his heart+ and he refused to listen to them, just as Jehovah had said.