Numbers 10
5 Ref When ye blow an alarm, then the camps that lie on the east parts shall go forward.
6 Ref When ye blow an alarm the second time, then the camps that lie on the south side shall take their journey: they shall blow an alarm for their journeys.
7 Ref But when the congregation is to be gathered together, ye shall blow, but ye shall not sound an alarm.
8 Ref And the sons of Aaron, the priests, shall blow with the trumpets; and they shall be to you for an ordinance for ever throughout your generations.
9 Ref And if ye go to war in your land against the enemy that oppresseth you, then ye shall blow an alarm with the trumpets; and ye shall be remembered before the LORD your God, and ye shall be saved from your enemies.