Numbers 1 20
The sons of Reuben, Israel's firstborn, their generations, by their families, by their fathers' houses, according to the number of names, head by head, every male from twenty years old and upward, all who were able to go to war:
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GW Numbers 1:20The roster of families and households for the descendants of Reuben, Israel’s firstborn son, listed every man by name who was at least 20 years old and eligible for military duty.
NKJ Numbers 1:20Now the children of Reuben, Israel’s oldest son, their genealogies by their families, by their fathers’ house, according to the number of names, every male individually, from twenty years old and above, all who were able to go to war: