And he gave him the covenant of circumcision: and so Avraham begat Yitzchak, and circumcised him the eighth day; and Yitzchak begat Yaakov; and Yaakov begat the twelve patriarchs.
And it came to pass, when Yisrael dwelt in that land, that Reuven went and lay with Bilhah his father's concubine: and Yisrael heard it. Now the sons of Yaakov were twelve:
Of the children of Dan, by their generations, after their families, by the house of their fathers, according to the number of the names, from twenty years old and upward, all that were able to go forth to war;