Numeri 1:20

De zonen, die van Ruben afstamden, Israëls eerstgeborene, werden naar hun geslachten en families, hoofd voor hoofd, met name geteld; het getal strijdbare mannen van twintig jaar af

And the children of Reuben, Israel’s eldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, by their polls, every male from twenty years old and upward, all that were able to go forth to war;