NET
2 “Take a census of the whole community of Israelites, from twenty years old and upward, by their clans, everyone who can serve in the army of Israel.”
Darby
2 Take the sum of the whole assembly of the children of Israel, from twenty years old and upward, according to their fathers' houses, all that go forth to military service in Israel.
KJV
2 Take the sum of all the congregation of the children of Israel, from twenty years old and upward, throughout their fathers' house, all that are able to go to war in Israel.