Numbers 10:5-15 RSV

5 When you blow an alarm, the camps that are on the east side shall set out.
6 And when you blow an alarm the second time, the camps that are on the south side shall set out. An alarm is to be blown whenever they are to set out.
7 But when the assembly is to be gathered together, you shall blow, but you shall not sound an alarm.
8 And the sons of Aaron, the priests, shall blow the trumpets. The trumpets shall be to you for a perpetual statute throughout your generations.
9 And when you go to war in your land against the adversary who oppresses you, then you shall sound an alarm with the trumpets, that you may be remembered before the LORD your God, and you shall be saved from your enemies.
10 On the day of your gladness also, and at your appointed feasts, and at the beginnings of your months, you shall blow the trumpets over your burnt offerings and over the sacrifices of your peace offerings; they shall serve you for remembrance before your God: I am the LORD your God."
11 In the second year, in the second month, on the twentieth day of the month, the cloud was taken up from over the tabernacle of the testimony,
12 and the people of Israel set out by stages from the wilderness of Sinai; and the cloud settled down in the wilderness of Paran.
13 They set out for the first time at the command of the LORD by Moses.
14 The standard of the camp of the men of Judah set out first by their companies; and over their host was Nahshon the son of Ammin'adab.
15 And over the host of the tribe of the men of Is'sachar was Nethan'el the son of Zu'ar.