Yahweh went before them, by day in a pillar of cloud to guide them on the way, and by night in a pillar of fire to give them light, so that they could travel by day and by night.
In context
19Moses took the bones of Joseph with him, for Joseph had made the Israelites swear a solemn oath, saying, “God will surely attend to you, and then you must carry my bones up from here with you.” 20They set out from Succoth and camped at Etham, on the edge of the wilderness. 21Yahweh went before them, by day in a pillar of cloud to guide them on the way, and by night in a pillar of fire to give them light, so that they could travel by day and by night. 22The pillar of cloud by day and the pillar of fire by night never left its place in front of the people.