Exodus Chapter 7 NASB
Exodus Chapter 8 NASB
24 Then the Lord did so. And there came great swarms of flies into the house of Pharaoh and the houses of his servants and the land was laid waste because of the swarms of flies in all the land of Egypt. 25 Pharaoh called for Moses and Aaron and said, "Go, sacrifice to your God within the land."
Exodus Chapter 9:1-17
13 Then the Lord said to Moses, "Rise up early in the morning and stand before Pharaoh and say to him, 'Thus says the Lord, the God of the Hebrews, "Let My people go, that they may serve Me. 14 For this time I will send all My plagues on you and your servants and your people, so that you may know that there is no one like Me in all the earth. 15 For if by now I had put forth My hand and struck you and your people with pestilence, you would then have been cut off from the earth. 16 But, indeed, for this reason I have allowed you to remain, in order to show you My power and in order to proclaim My name through all the earth. 17 Still you exalt yourself against My people by not letting them go.