Numbers 26:1-5

¹And it came to pass after the plague, That the Lord spoke unto Moses and unto Elazar the son of Aaron the priest, saying,

²Take ye the sum of all the congregation of the children of Israel, from twenty years old and upward, by the descent from their fathers, all that are able to go forth to war in Israel.

³And Moses with El'azar the priest spoke with them in the plains of Moab by the Jordan opposite Jericho, saying,

⁴Take the sum of the people, from twenty years old and upward; as the Lord commanded Moses and the children of Israel, who went forth out of the land of Egypt.

⁵Reuben, the eldest son of Israel: the children of Reuben, of Chanoch, the family of the Chanochites; of Pallu, the family of the Palluites;