For the Anan Hashem was upon the Mishkan by day, and Eish was on it by night, in the sight of all the Bais Yisroel, throughout all their journeys. [T.N. The Theme of gracious, unmerited Deliverance and Salvation for an Am Kesheh Oref (Obstinate Stiffnecked People) has been presented in the Second Book of Moses.]