Adonai did just so. A massive swarm of flies went into the house of Pharaoh and into his servant’s houses. All the land of Egypt was ruined because of the swarm of flies.
Then the daughter of Pharaoh came down to bathe, while her maidens walked along by the riverside. When she saw the basket among the reeds, she sent her handmaiden to fetch it.
“They will listen to your voice. So you will go, you along with the elders of Israel, to the king of Egypt, and say to him: ‘Adonai, the God of the Hebrews, has met with us. Now please let us take a three-day journey into the wilderness, so that we may sacrifice to Adonai our God.’
Afterward, Moses and Aaron went and said to Pharaoh, “This is what Adonai, God of Israel, says: Let My people go, so that they may hold a feast for Me in the wilderness.”
They answered, “The God of the Hebrews has met with us. Please let us take a three-day journey into the wilderness, so we may sacrifice to Adonai our God, or else He may strike us with pestilence or with the sword.”
Go to Pharaoh in the morning as he is coming out to the water, and stand ready to meet him by the bank of the Nile. Take the staff that was transformed into a serpent in your hand.
Then Adonai told Moses, “Say to Aaron: Stretch out your hand with your staff over the rivers, canals and pools, and cause frogs to come up over the land of Egypt.”
Then Adonai said to Moses, “Rise up early in the morning, stand before Pharaoh and say to him: This is what Adonai the God of the Hebrews says: ‘Let My people go, so they may serve Me.