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 29:1

Blowing Trumpets

29:1 “‘On the first day of the seventh month, you are to hold a holy assembly. You must not do your ordinary work, for it is a day of blowing trumpets for you.

Numbers 31:6

Campaign Against the Midianites

31:6 So Moses sent them to the war, one thousand from every tribe, with Phinehas son of Eleazar the priest, who was in charge of the holy articles and the signal trumpets.