New American Standard Bible (NASB)
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.
22 Whether it was two days or a month or a year that the cloud lingered over the tabernacle, staying above it, the sons of Israel remained camped and did not set out; but when it was lifted, they did set out.
23 At the command of the Lord they camped, and at the command of the Lord they set out; they kept the Lord’s charge, according to the command of the Lord through Moses.
Numbers 10
1 The Lord spoke further to Moses, saying,
2 "Make yourself two trumpets of silver, of hammered work you shall make them; and you shall use them for summoning the congregation and for having the camps set out.
3 When both are blown, all the congregation shall gather themselves to you at the doorway of the tent of meeting.
4 Yet if only one is blown, then the leaders, the heads of the divisions of Israel, shall assemble before you.
5 But when you blow an alarm, the camps that are pitched on the east side shall set out.
6 When you blow an alarm the second time, the camps that are pitched on the south side shall set out; an alarm is to be blown for them to set out.
7 When convening the assembly, however, you shall blow without sounding an alarm.
8 The priestly sons of Aaron, moreover, shall blow the trumpets; and this shall be for you a perpetual statute throughout your generations.