Seventy - See Genesis 46:27. The object of the writer in this introductory statement is to give a complete list of the heads of separate families at the time of their settlement in Egypt. See the note at Numbers 26:5.
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.