Exodus 13:21-22

Darby Translation

²¹ And Jehovah went before their face by day in a pillar of a cloud, to lead them [in] the way; and by night in a pillar of fire, to give them light; so that they could go day and night.

²² The pillar of the cloud did not remove [from] before the people by day, nor the pillar of fire by night.