Numbers 9:21

Sometimes the cloud was from evening until morning; and when the cloud was taken up in the morning, they traveled: or by day and by night, when the cloud was taken up, they traveled.

Nehemiah 9:12

Moreover, in a pillar of cloud you led them by day; and in a pillar of fire by night, to give them light in the way in which they should go.

Nehemiah 9:19

yet you in your manifold mercies didn't forsake them in the wilderness: the pillar of cloud didn't depart 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 in which 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 you led them by day; and in a pillar of fire by night, to give them light in the way in which they should go.

General references

Exodus 40:37
but if the cloud wasn't taken up, then they didn't travel until the day that it was taken up.
Numbers 9:16
So it was continually. The cloud covered it, and the appearance of fire by night.
Psalm 136:16
To him who led his people through the wilderness; for his loving kindness endures forever: