Adonai went before them in a pillar of cloud by day to lead the way and in a pillar of fire by night to give them light. So they could travel both day and night.
Then the angel of God, who went before the camp of Israel, moved and went behind them. Also the pillar of cloud moved from in front and stood behind them,
Whether for two days or a month or a year, while the cloud remained over the Tabernacle, Bnei-Yisrael remained camped and would not set out. But when it would lift, they would set out.