Exodus 1:3-7

Issachar, Zebulun, and Benjamin;

Dan and Naphtali, Gad and Asher.

Jacob had 70 descendants there, including Joseph who was already in Egypt.

Eventually Joseph and all his brothers and all that generation died.

However, the Israelites had many children and their numbers increased rapidly. In fact there were so many of them that they became very powerful—the country was full of them.