Numbers 2:32-34

32These are the ones who were numbered of the children of Israel by their fathers’ houses. All who were numbered according to their armies of the forces were six hundred and three thousand five hundred and fifty.

33But the Levites were not numbered among the children of Israel, just as the Lord commanded Moses.

34Thus the children of Israel did according to all that the Lord commanded Moses; so they camped by their standards and so they broke camp, each one by his family, according to their fathers’ houses.