The Lord went before them. From Succoth at any rate; perhaps even on the journey from Rameses to Succoth. In a pillar of cloud. The pillar was seen—the presence of Jehovah, though unseen, was believed to be in it, and to move it.
To go by day and night. Or, "so that they might march both by day and by night." Night marches are generally preferred by Orientals on account of the great heat of the days. The night-marches of the Israelites are again mentioned in Numbers 9:21.