Exodus 5:17

5:17 But Pharaoh replied, “You are slackers! Slackers! That is why you are saying, ‘Let us go sacrifice to the Lord.’

Exodus 5:8

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.’