Exodus 1:13

and they ¹  made the Israelites serve rigorously. ² 

and worked them ruthlessly.

The Egyptians compelled the sons of Israel to labor rigorously;

and decided to make their slavery more bitter still.

and treated them worse than ever, crushing them with slave labor.

And they gave the children of Israel even harder work to do:

The Egyptians became ruthless in imposing tasks on the Israelites,

So the Egyptians made the children of Israel serve with rigor.

and they ¹  made the Israelites serve rigorously. ² 

¹ tn Heb “the Egyptians.” For stylistic reasons this has been replaced by the pronoun “they” in the translation.

² tn Heb “with rigor, oppression.”