1 Corinthians 10:1

For I would not have you, brothers, to be ignorant of the fact that though our forefathers were all made safe by the cloud, and all went securely through the sea, and in the cloud and the sea

2 Corinthians 5:19

For it was through Christ that God was reconciling the world to Himself instead of debiting men's offenses against them, and He has committed to me the message of this reconciliation.

Revelation 21:3

Then I heard a loud voice from the throne say: "See! God's dwelling place is with men, and He will live with them,

Treasury of Scripture Knowledge

Summary

So it was alway: the cloud covered it by day, and the appearance of fire by night.

Bible References

General references

1 Corinthians 10:1
For I would not have you, brothers, to be ignorant of the fact that though our forefathers were all made safe by the cloud, and all went securely through the sea, and in the cloud and the sea
2 Corinthians 5:19
For it was through Christ that God was reconciling the world to Himself instead of debiting men's offenses against them, and He has committed to me the message of this reconciliation.
Revelation 21:3
Then I heard a loud voice from the throne say: "See! God's dwelling place is with men, and He will live with them,