Numbers 10:6-8

English Standard Version

⁶ And when you blow an alarm the second time, ^(A)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, ^(B)you shall blow a long blast, but you shall not ^(C)sound an alarm. ^8 (D)And the sons of Aaron, the priests, shall blow the trumpets. The trumpets shall be to you for a perpetual statute throughout your generations.