What does Exodus 5:6-18 mean?

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.’ Let heavier work be laid on the men that they may labor at it and pay no regard to lying words.” So the taskmasters and the foremen of the people went out and said to the people, “Thus says Pharaoh, ‘I will not give you straw. Go and get your straw yourselves wherever you can find it, but your work will not be reduced in the least.’” So the people were scattered throughout all the land of Egypt to gather stubble for straw. The taskmasters were urgent, saying, “Complete your work, your daily task each day, as when there was straw.” And the foremen of the people of Israel, whom Pharaoh’s taskmasters had set over them, were beaten and were asked, “Why have you not done all your task of making bricks today and yesterday, as in the past?” Then the foremen of the people of Israel came and cried to Pharaoh, “Why do you treat your servants like this? No straw is given to your servants, yet they say to us, ‘Make bricks!’ And behold, your servants are beaten; but the fault is in your own people.” But he said, “You are idle, you are idle; that is why you say, ‘Let us go and sacrifice to the LORD.’ Go now and work. No straw will be given you, but you must still deliver the same number of bricks.”

English Standard Version (ESV)