The LORD went before them by day in a pillar of cloud, to lead them on their way, and by night in a pillar of fire, to give them light, that they might go by day and by night:
The angel of God, who went before the camp of Yisra'el, moved and went behind them; and the pillar of cloud moved from before them, and stood behind them.
Whether it was two days, or a month, or a year that the cloud stayed on the tabernacle, remaining on it, the children of Yisra'el remained encamped, and didn't travel; but when it was taken up, they traveled.