Numbers 1:50-52

50 “Instead, appoint the Lĕwites over the Dwelling Place of the Witness, over all its furnishings, and over all that belongs to it. They bear the Dwelling Place and all its furnishings, and they attend to it, and camp around the Dwelling Place.

51 “And when the Dwelling Place is to go forward, the Lĕwites take it down. And when the Dwelling Place is to be set up, the Lĕwites set it up. And the stranger who comes near is put to death.

52 And the children of Yisra’ĕl shall pitch their tents, everyone by his own camp, everyone by his own banner, according to their divisions,”