So they ruthlessly made the people of Israel work as slaves
13. And the Egyptians made. Thus Moses informs us that, so far from being induced to kindness by their fears, they were rather hardened, and spurred on to greater cruelty; for the wicked do not perceive that God is against them, when their perverse strivings are unsuccessful; and if this thought ever arises, still the blind impetuosity of their folly hurries them forwards, so that...
The land of Egypt here, at length, becomes to Israel a house of bondage, though hitherto it had been a happy shelter and settlement for them. Note, The place of our satisfaction may soon become the place of our affliction, and that may prove the greatest cross to us of which we said, This same shall comfort us.
Commenting on Exodus 1:8-14
And the Egyptians made the children of Israel to serve with rigour. Or with breach (c), with what might tend to break their strength; they laid heavier burdens upon them, obliged them to harder service, used them more cruelly and with greater fierceness, adding to their hard service ill words, and perhaps blows. (c) "in fractione", Cajetan. apud Rivet.