Numbers 9:21

21 Sometimes the [column of] smoke stayed only from evening until morning. When the smoke moved in the morning, they broke camp. Day or night, when the smoke moved, they broke camp.

Numbers 9:21 Meaning and Commentary

Numbers 9:21

And [so] it was when the cloud abode from even unto the
morning
The whole night, during which time they rested in their beds:

and [that] the cloud was taken up in the morning, then they journeyed;
whether [it was] by day or night that the cloud was taken up, they
journeyed;
whether at morning or midnight; for sometimes, as Aben Ezra observes, they travelled in the night; whensoever their sentinels gave notice that the cloud was taken up, even though at midnight, they arose and prepared for their journey; and by this it is evident, that the appearance by day and night was the same body called the cloud, though beheld in a different view, in the daytime as a cloud, in the nighttime as fire.

Numbers 9:21 In-Context

19 When the smoke stayed over the tent for a long time, the Israelites obeyed the LORD's command and wouldn't break camp.

20 The same thing happened when the smoke stayed only a few days over the tent: At the LORD's command they would set up camp, and at his command they would break camp.

21 Sometimes the [column of] smoke stayed only from evening until morning. When the smoke moved in the morning, they broke camp. Day or night, when the smoke moved, they broke camp.

22 Whether it was two days, a month, or a year, as long as the [column of] smoke stayed over the tent, the Israelites would stay in the same place and not break camp. But when the smoke moved, they would break camp.

23 At the LORD's command they set up camp, and at his command they broke camp. They obeyed the command that the LORD had given through Moses.