Exodus 1:11, 14, 16, 22

So they appointed taskmasters over them to afflict them with hard labor. And they built for Pharaoh storage cities, Pithom and Raamses.

and they made their lives bitter with hard labor in mortar and bricks and at all kinds of labor in the field, all their labors which they rigorously imposed on them.

and he said, “When you are helping the Hebrew women to give birth and see them upon the birthstool, if it is a son, then you shall put him to death; but if it is a daughter, then she shall live.”

Then Pharaoh commanded all his people, saying, “Every son who is born you are to cast into the Nile, and every daughter you are to keep alive.”