Exodus 1 is structured around the three attacks of Pharaoh on the people of Israel, as follows:
Exodus 1:1–7 – Setting and introduction
Exodus 1:8–14 – First attack of Pharaoh: slavery
Exodus 1:15–21 – Second attack of Pharaoh: the midwives to kill the baby boys
Exodus 1:22 – Third attack of Pharaoh: baby boys to be thrown into the Nile
1 These are the names of the sons of Israel who came to Egypt with Jacob, each with his household: