Numbers 9:21

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

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 cloud stayed on the tabernacle many days, then the children of Yisra'el kept the charge of the LORD, and didn't travel.

20 Sometimes the cloud was a few days on the tabernacle; then according to the mitzvah of the LORD they remained encamped, and according to the mitzvah of the LORD they journeyed.

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

22 Whether it was two days, or a month, or a year that the cloud stayed on the tabernacle, remaining on it, the children of Yisra'el remained encamped, and didn't travel; but when it was taken up, they traveled.

23 At the mitzvah of the LORD they encamped, and at the mitzvah of the LORD they journeyed. They kept the charge of the LORD, at the mitzvah of the LORD by Moshe.