Numbers 9:21

And sometimes the cloud was from evening until morning; and when the cloud was taken up in the morning, they journeyed: or if it continued by day and by night, when the cloud was taken up, they journeyed.

Nehemiah 9:12

Moreover in a pillar of cloud thou leddest them by day; and in a pillar of fire by night, to give them light in the way wherein they should go.

Nehemiah 9:19

yet thou in thy manifold mercies forsookest them not in the wilderness: the pillar of cloud departed not from over them by day, to lead them in the way; neither the pillar of fire by night, to show them light, and the way wherein they should go.

Treasury of Scripture Knowledge

Summary

And so it was, when the cloud abode from even unto the morning, and that the cloud was taken up in the morning, then they journeyed: whether it was by day or by night that the cloud was taken up, they journeyed.

Bible References

Abode

Nehemiah 9:12
Moreover in a pillar of cloud thou leddest them by day; and in a pillar of fire by night, to give them light in the way wherein they should go.

General references

Exodus 40:37
but if the cloud was not taken up, then they journeyed not till the day that it was taken up.
Numbers 9:16
So it was alway: the cloud covered it, and the appearance of fire by night.
Psalm 136:16
To him that led his people through the wilderness; For his lovingkindness endureth for ever:

American Standard Version Public Domain