Exodus 40:36-38

New Century Version

³⁶ When the cloud rose from the Holy Tent, the Israelites would begin to travel, ³⁷ but as long as the cloud stayed on the Holy Tent, they did not travel. They stayed in that place until the cloud rose. ³⁸ So the cloud of the Lord was over the Holy Tent during the day, and there was a fire in the cloud at night. So all the Israelites could see the cloud while they traveled.