He spread a cloud for a covering; and fire to give light in the night.
All Commentaries on Psalms 105:39 Go To Psalms 105
Augustine of Hippo
AD 430
29. He now proceedeth to the divine blessings which were conferred upon them as they wandered in the desert. "He spread out a cloud to be their covering: and fire to give them light in the night season" (ver. 39). This is as clear as it is well known.