New International Version
33 Then Moses left Pharaoh and went out of the city. He spread out his hands toward the Lord; the thunder and hail stopped, and the rain no longer poured down on the land. 34 When Pharaoh saw that the rain and hail and thunder had stopped, he sinned again: He and his officials hardened their hearts. 35 So Pharaoh’s heart(A) was hard and he would not let the Israelites go, just as the Lord had said through Moses.