Exodus 13:21

13:21 Now the Lord was going before them by day in a pillar of cloud to lead them in the way, and by night in a pillar of fire to give them light, so that they could travel day or night.

Numbers 9:15

The Leading of the Lord

9:15 On the day that the tabernacle was set up, the cloud covered the tabernacle – the tent of the testimony – and from evening until morning there was a fiery appearance over the tabernacle.