1 And the Lord spoke to Moses, saying:
2 Make for yourself two silver trumpets. Of a hammered work you will make them, and you will use them for summoning of the assembly and directing the breaking up of the camps.
3 When they blow both of them, all the assembly will assemble themselves to you at the door of the tent of meeting.
4 If they blow only one, then the leaders, who are heads of the thousands of Israel, will gather themselves to you.
5 When you blow an alarm, then the camps that lie on the east will set out.
6 When you blow an alarm the second time, then the camps that lie on the south will set out. They will blow an alarm for their setting out.
7 But when the assembly is to be gathered together, you will blow, but you will not sound an alarm.