Exodus 5:5-8, 20-23

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. But the number of bricks that they made in the past you shall impose on them, you shall by no means reduce it, for they are idle. Therefore they cry, ‘Let us go and offer sacrifice to our God.’

They met Moses and Aaron, who were waiting for them, as they came out from Pharaoh; and they said to them, “The LORD look on you and judge, because you have made us stink in the sight of Pharaoh and his servants, and have put a sword in their hand to kill us.” Then Moses turned to the LORD and said, “O Lord, why have you done evil to this people? Why did you ever send me? For since I came to Pharaoh to speak in your name, he has done evil to this people, and you have not delivered your people at all.”