When God commanded Israel to set out from Sinai and continue their march, the Israelites were glad, for during their stay in that place they had throughout eleven days received new laws daily, and they hoped that after having departed from the holy mountain they would receive no further laws. Hence, instead of making a day's march from Sinai, as God had commanded them, they marched incessantly for three days, in order to be as far as possible from the holy spot.
They behaved like a boy who runs quickly away after dismissal from school, that his teacher might not call him back. Although this antipathy to His laws vexed God, He did not therefore forsake them, but let the Ark move before them as long as they desired to continue the march. For it was by this token that the Israelites knew that the Shekinah was among them, as God had promised them. As often as they broke camp or pitched camp Moses would say to them: "Do what the Shekinah within the Ark bids you do."
But they would not believe Moses that the Shekinah dwelt among them unless he spoke the words: "Rise up, Lord, and let Thine enemies be scattered; and let them that hate Thee flee before Thee," whereupon the Ark would begin to move, and they were convinced of the presence of the Shekinah. The Ark furthermore gave the signal for breaking camp by soaring up high, and then swiftly moving before the camp at a distance of three days' march, until it found a suitable spot upon which Israel might encamp.