Numbers 26:3-5  New English Translation

³ So Moses and Eleazar the priest spoke with them in the rift valley plains^[a] of Moab, along the Jordan River^[b] across from Jericho. They said, ⁴ “Number the people^[c] from twenty years old and upward, just as the Lord commanded Moses and the Israelites who went out from the land of Egypt.”

Reuben

⁵ Reuben was the firstborn of Israel. The Reubenites: from^[d] Hanoch, the family of the Hanochites; from Pallu, the family of the Palluites;