Numbers 2:33-34

Tree of Life Version

³³ However, the Levites were not counted among Bnei-Yisrael, just as Adonai commanded Moses. ³⁴ So Bnei-Yisrael acted in accordance with all that Adonai had commanded Moses.

Thus they camped by their standards and set out, each man according to their families and their ancestral houses.