So the Egyptians made the children of Israel serve with rigor.
Exodus 1:13
Surrounding context
1:12 But the more they afflicted them, the more they multiplied and grew. And they were in dread of the children of Israel.
1:13 So the Egyptians made the children of Israel serve with rigor.
1:14 And they made their lives bitter with hard bondage--in mortar, in brick, and in all manner of service in the field. All their service in which they made them serve was with rigor.