Exodus 5:2

5:2 But Pharaoh said, “Who is the Lord that I should obey him by releasing Israel? I do not know the Lord, and I will not release Israel!”

Exodus 5:7-8

5:7 “You must no longer give straw to the people for making bricks as before. Let them go and collect straw for themselves. 5:8 But you must require of them the same quota of bricks that they were making before. Do not reduce it, for they are slackers. That is why they are crying, ‘Let us go sacrifice to our God.’