Genesis 46:26
The total number of Jacob's direct descendants who went with him to Egypt was sixty-six. This did not include the wives of Jacob's sons.
Exodus 1:5
Joseph was already in Egypt. The total number of Jacob's descendants was seventy.
Genesis 35:11
God also said: I am God Almighty. Be fruitful and increase in number. A nation and an assembly of nations will come from you. Kings shall come forth from you.
Judges 8:30
He had many wives and seventy sons.
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
God also said: I am God Almighty. Be fruitful and increase in number. A nation and an assembly of nations will come from you. Kings shall come forth from you.
Exodus 1:5
Joseph was already in Egypt. The total number of Jacob's descendants was seventy.
Judges 8:30
He had many wives and seventy sons.
General references
Hebrews 7:10
He was still in the loins of his ancestor (not yet born) when Melchizedek met him.