Exodus 8:29-32

Living Bible

²⁹ “Yes,” Moses said, “I will ask him to cause the swarms of flies to disappear. But I am warning you that you must never again lie to us by promising to let the people go and then changing your mind.”

³⁰ So Moses went out from Pharaoh and asked the Lord to get rid of the flies. ^31-32 And the Lord did as Moses asked and caused the swarms to disappear, so that not one remained. But Pharaoh hardened his heart again and did not let the people go!