Numbers 9:21

If sometimes the cloud remained from evening until morning, when the cloud was lifted in the morning, they would move out; or if it remained in the daytime and at night, whenever the cloud was lifted, they would set out.

Nehemiah 9:12

“And with a pillar of cloud You led them by day,
And with a pillar of fire by night
To light for them the way
In which they were to go.

Nehemiah 9:19

You, in Your great compassion,
Did not forsake them in the wilderness;
The pillar of cloud did not leave them by day,
To guide them on their way,
Nor the pillar of fire by night, to light for them the way in which they were to 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
“And with a pillar of cloud You led them by day,
And with a pillar of fire by night
To light for them the way
In which they were to go.

General references

Exodus 40:37
but if the cloud was not taken up, then they did not set out until the day when it was taken up.
Numbers 9:16
So it was continuously; the cloud would cover it by day, and the appearance of fire by night.
Psalm 136:16
To Him who led His people through the wilderness,
For His lovingkindness is everlasting;