Genesis 46:26
All the persons belonging to Jacob who came to Egypt {who were his descendants}, not including the wives of the sons of Jacob [were] sixty-six persons in all.
Exodus 1:5
And {all those who descended from Jacob} were seventy individuals, and Joseph was in Egypt.
Genesis 35:11
And God said to him, "I [am] El-Shaddai. Be fruitful and multiply. A nation and an assemblage of nations shall be from you, and kings shall go out from your loins.
Judges 8:30
Now Gideon had seventy sons, {his own offspring}, for he had many wives.
Treasury of Scripture Knowledge
Summary
All the souls that came with Jacob into Egypt, which came out of his loins, besides Jacob's sons' wives, all the souls were threescore and six;
General references
Bible References
Loins
Genesis 35:11
And God said to him, "I [am] El-Shaddai. Be fruitful and multiply. A nation and an assemblage of nations shall be from you, and kings shall go out from your loins.
Exodus 1:5
And {all those who descended from Jacob} were seventy individuals, and Joseph was in Egypt.
Judges 8:30
Now Gideon had seventy sons, {his own offspring}, for he had many wives.
General references
Hebrews 7:10
For he was still in the loins of his father when Melchizedek met him.