by John MacDuff
"By day the Lord went ahead of them in a pillar of cloud to guide them on
their way and by night in a pillar of fire to give them light, so
that they could travel by day or night. Neither the pillar of cloud by day
nor the pillar of fire by night left its place in front of the people."
Exodus 13:21-22
Preface
The Comforter and His Comforts
Divine Sovereignty