Exodus 1:14; Exodus 5:7-8; Exodus 5:16; Exodus 5:19

14 And they made their lives bitter with hard bondage, in morter, and in brick, and in all manner of service in the field: all their service, wherein they made them serve , was with rigour.
7 Ye shall no more give the people straw to make brick, as heretofore : let them go and gather straw for themselves. 8 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.
16 There is no straw given unto thy servants, and they say to us, Make brick: and, behold, thy servants are beaten ; but the fault is in thine own people.
19 And the officers of the children of Israel did see that they were in evil case, after it was said , Ye shall not minish ought from your bricks of your daily task.