Exodus 5:2-5

2Pharaoh said, “Who is the LORD, that I should obey him and let Israel go? I do not know the LORD and I will not let Israel go.”

3Then they said, “The God of the Hebrews has met with us. Now let us take a three-day journey into the wilderness to offer sacrifices to the LORD our God, or he may strike us with plagues or with the sword.” 4But the king of Egypt said, “Moses and Aaron, why are you taking the people away from their labor? Get back to your work!”

5Then Pharaoh said, “Look, the people of the land are now numerous, and you are stopping them from working.”