The camp was in the form of a square, twelve thousand cubits on each side, and in the middle was the space, four thousand cubits in size, for the sanctuary, and the dwelling place of priests and Levites. In the East of the sanctuary lived Moses, Aaron, and Aaron's sons; the Levites of the family of Kohath lived in the South, the sons of Gershon in the West, and the sons of Merari in the North. Each of theses divisions had for its dwelling place a space of a hundred cubits, while each group of three tribes that joined under one standard had a space of four thousand cubits.
This was only for the dwelling place of the people, the cattle were outside the encampment, and the cloud of glory separated the dwelling places of the human beings from those of the animals. Rivers surrounded the camp from without, and so also were the different groups separated one from the other by rivers. But in order that on the Sabbath, when riding was prohibited, intercourse among the different parts of the camp might not be rendered impossible, there were bridges of boards over the rivers.
The purple color of the cloud of glory was reflected in the waters of the rivers, so that it spread afar a radiance like that of the sun and the stars. The heathens, whenever they beheld these wondrous radiant waters, were frightened and feared Israel, but at the same time praised God for the miracles He wrought for Israel.