Numbers 2:32-34

32These are those who were numbered of the children of Israel by the house of their fathers: all those that were numbered of the camps throughout their hosts were six hundred thousand and three thousand and five hundred and fifty. 33But the Levites were not numbered among the children of Israel; as the LORD commanded Moses. 34And the children of Israel did according to all that the LORD commanded Moses: so they encamped by their standards, and so they moved forward, every one after their families, according to the house of their fathers.