Exodus 5:5-9, 18

And Pharaoh said, Behold, the people of the land now are many, and ye make them rest from their burdens. And Pharaoh commanded the same day the taskmasters of the people, and their officers, saying, Ye shall no more give the people straw to make brick, as heretofore: let them go and gather straw for themselves. And the tale of the bricks, which they did make heretofore, ye shall lay upon them; ye shall not diminish ought thereof: for they be idle; therefore they cry, saying, Let us go and sacrifice to our God. Let there more work be laid upon the men, that they may labour therein; and let them not regard vain words.

Go therefore now, and work; for there shall no straw be given you, yet shall ye deliver the tale of bricks.