Bamidbar 9:21

21 And so it was, when the Anan abode from erev unto boker, and that the Anan was lifted up in the boker, then they set out; whether it was by yomam valailah that the Anan was lifted up, they set out.

Bamidbar 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.

Bamidbar 9:21 In-Context

19 And when the Anan tarried long upon the Mishkan many days, then the Bnei Yisroel obeyed the order of Hashem, and did not set out.

20 And so it was, when the Anan was a few days upon the Mishkan; according to the mouth of Hashem they encamped; according to the mouth of Hashem they set out.

21 And so it was, when the Anan abode from erev unto boker, and that the Anan was lifted up in the boker, then they set out; whether it was by yomam valailah that the Anan was lifted up, they set out.

22 Or whether it were two days, or a month, or longer, that the Anan tarried over the Mishkan remaining thereon, the Bnei Yisroel abode in their tents, and did not set out; but when it was lifted up, they set out.

23 At the mouth of Hashem they encamped, and at the mouth of Hashem they set out; they obeyed the order of Hashem, at the mouth of Hashem by the hand of Moshe.