21 God went ahead of them in a Pillar of Cloud during the day to guide them on the way, and at night in a Pillar of Fire to give them light; thus they could travel both day and night.

Matthew Henry's Commentary on Exodus 13:21

Commentary on Exodus 13:21-22

(Read Exodus 13:21-22)

The Lord went before them in a pillar, or appearance of the Divine Majesty. Christ was with the church in the wilderness, John 14:6.