11 These are the names of the sons of Israel (that is, Jacob) who moved to Egypt with their father, each with his family: 2 Reuben, Simeon, Levi, Judah, 3 Issachar, Zebulun, Benjamin, 4 Dan, Naphtali, Gad, and Asher. 5 In all, Jacob had seventy descendants in Egypt, including Joseph, who was already there.
Matthew Henry's Commentary on Exodus 1:1-5
Commentary on Exodus 1:1-7
(Read Exodus 1:1-7)
During more than 200 years, while Abraham, Isaac, and Jacob lived at liberty, the Hebrews increased slowly; only about seventy persons went down into Egypt. There, in about the same number of years, though under cruel bondage, they became a large nation. This wonderful increase was according to the promise long before made unto the fathers. Though the performance of God's promises is sometimes slow, it is always sure.