Moses and Aaron return to Egypt and demand Pharaoh set the Israelites free. Pharaoh refuses then tells his slave masters to force the Israelites to work harder to discourage them from ideas of freedom.
Exodus 1: The Israelites Oppressed
The generation of Joseph dies. The Israelites grow into a large population under successive Pharaohs. Becoming too large of a population, Pharaoh commands all the Hebrew boys drowned in the Nile at birth.