Of the children of Yehudah, their generations, by their families, by their fathers' houses, according to the number of the names, from twenty years old and upward, all who were able to go out to war;
He gave him the covenant of circumcision. So Avraham became the father of Yitzchak, and circumcised him the eighth day. Yitzchak became the father of Ya`akov, and Ya`akov became the father of the twelve patriarchs.