All those belonging to Jacob who came to Egypt--his direct descendants, besides the wives of Jacob's sons--numbered sixty-six persons.

Acts 7:14
Then Joseph sent for his father Jacob and all his relatives, seventy-five in all.

Genesis 34:30
Then Jacob said to Simeon and Levi, "You have brought trouble upon me by making me a stench to the Canaanites and Perizzites, the people of this land. We are few in number; if they unite against me and attack me, I and my household will be destroyed."

Exodus 1:5
The descendants of Jacob numbered seventy in all, including Joseph, who was already in Egypt.

All the souls that came with Jacob into Egypt, which came out of his loins, besides Jacob's sons' wives, all the souls were three score and six;