Exodus 9:33-34
Exodus 9: 33 to 34
33 And Moses went out of the city from Pharaoh, and spread abroad his hands to the LORD: and the thunders and hail ceased, and the rain was not poured on the earth.
34 And when Pharaoh saw that the rain and the hail and the thunders were ceased, he sinned yet more, and hardened his heart, he and his servants.