Numbers 1:32-34

Amplified Bible

³² Of the sons of Joseph: the sons (descendants) of Ephraim, their descendants, by their families (clans), by their fathers’ households, according to the number of names, from twenty years old and upward, all who were able to go to war: ³³ those of the tribe of Ephraim numbered 40,500.

³⁴ Of the sons of Manasseh, their descendants, by their families (clans), by their fathers’ households, according to the number of names, from twenty years old and upward, all who were able to go to war: