Numbers 1:2-4

New American Standard Bible

² “^(A)Take a ^[a]census of all the congregation of the sons of Israel, by their families, by their fathers’ households, according to the number of names, every male, head by head ³ from ^(B)twenty years old and upward, whoever is able to go to war in Israel. You and Aaron shall ^[b]count them by their armies. ⁴ With you, moreover, there shall be a man of each tribe, ^(C)each one head of his father’s household.