Exodus 5:4-7

But the king of Egypt said to them, “Moses and Aaron, why do you take the people away from their work? Get back to your burdens.” And Pharaoh said, “Behold, the people of the land are now many, and you make them rest from their burdens!” The same day Pharaoh commanded the taskmasters of the people and their foremen, “You shall no longer give the people straw to make bricks, as in the past; let them go and gather straw for themselves.