Numbers 1:2-4

2 aTake a census of all the congregation of the people of Israel, by clans, bby fathershouses, according to the number of names, every male, head by head. 3 cFrom twenty years old and upward, all in Israel who are able to go to war, you and Aaron shall list them, dcompany by company. 4And there shall be with you a man from each tribe, each man being the head of the house of his fathers.
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