Numbers 10:2

10:2 “Make two trumpets of silver; you are to make them from a single hammered piece. You will use them for assembling the community and for directing the traveling of the camps.

Numbers 10:6

10:6 And when you blow an alarm the second time, then the camps that are located on the south side must begin to travel. An alarm must be sounded for their journeys.

Numbers 29:7

The Day of Atonement

29:7 “‘On the tenth day of this seventh month you are to have a holy assembly. You must humble yourselves; you must not do any work on it.