Exodus 5:1-5

And afterward Moses and Aaron came and said to Pharaoh, “This is what the Lord, the God of Israel says: ‘Let My people go so that they may celebrate a feast to Me in the wilderness.’ ”

But Pharaoh said, “Who is the Lord that I should obey His voice to let Israel go? I do not know the Lord, and besides, I will not let Israel go.”

Then they said, “The God of the Hebrews has met with us. Please, let us go a three days’ journey into the wilderness so that we may sacrifice to the Lord our God, otherwise He will strike us with plague or with the sword.”

But the king of Egypt said to them, “Moses and Aaron, why do you let the people neglect their work? Get back to your labors!”

Again Pharaoh said, “Look, the people of the land are now many, and you would have them cease from their labors!”