Psalm 105:37-39 Then he brought Israel out with silver and gold, and there was no one among their tribes who stumbled. Egypt was glad when they departed, for dread of them had fallen upon it. He spread a cloud for a covering, and fire to give light by night.
Exodus 13:17-22 When Pharaoh let the people go, God did not lead them by way of the land of the Philistines, although that was nearer; for God thought, ‘If the people face war, they may change their minds and return to Egypt.’ So God led the people by the roundabout way of the wilderness towards the Red Sea. The Israelites went up out of the land of Egypt prepared for battle. And Moses took with him the bones of Joseph, who had required a solemn oath of the Israelites, saying, ‘God will surely take notice of you, and then you must carry my bones with you from here.’ They set out from Succoth, and camped at Etham, on the edge of the wilderness. The Lord went in front of them in a pillar of cloud by day, to lead them along the way, and in a pillar of fire by night, to give them light, so that they might travel by day and by night. Neither the pillar of cloud by day nor the pillar of fire by night left its place in front of the people.
1 Corinthians 10:1-3 I do not want you to be unaware, brothers and sisters, that our ancestors were all under the cloud, and all passed through the sea, and all were baptised into Moses in the cloud and in the sea, and all ate the same spiritual food.
These Scripture Readings relate to the Colman Readings (The Jesse Tree) in Celtic Daily Prayer 2