Numbers 1:44-47

44These are the ones who were numbered, whom Moses and Aaron numbered, with the leaders of Israel, twelve men, each one representing his father’s house.

45So all who were numbered of the children of Israel, by their fathers’ houses, from twenty years old and above, all who were able to go to war in Israel—

46all who were numbered were six hundred and three thousand five hundred and fifty.

47But the Levites were not numbered among them by their fathers’ tribe;