Seventy souls — According to the computation we had, Genesis 46:27, including Joseph and his two sons. This was just the number of the nations by which the earth was peopled, Genesis 10:1-32, for when God separated the sons of Adam, he set the bounds of the people according to the number of the children of Israel, Deuteronomy 32:8.
Related Commentaries of Exodus 1:5
Exodus 1:5
5 And all the souls that came out of the loinsa of Jacob were seventy souls: for Joseph was in Egypt already.