28 So Pharaoh said, “I will let you go, that you may sacrifice to the Lord your God in the wilderness; only you shall not go very far away. Intercede for me.”
29 Then Moses said, “Indeed I am going out from you, and I will entreat the Lord, that the swarms of flies may depart tomorrow from Pharaoh, from his servants, and from his people. But let Pharaoh not deal deceitfully anymore in not letting the people go to sacrifice to the Lord.”
30 So Moses went out from Pharaoh and entreated the Lord.
31 And the Lord did according to the word of Moses; He removed the swarms of flies from Pharaoh, from his servants, and from his people. Not one remained.
32 But Pharaoh hardened his heart at this time also; neither would he let the people go.