Numbers 10:6-8

Christian Standard Bible

⁶ When you sound short blasts a second time, the camps pitched on the south^(A) are to set out. Short blasts are to be sounded for them to set out. ⁷ When calling the assembly together, you are to sound long blasts, not short ones. ⁸ The sons of Aaron, the priests, are to sound the trumpets. Your use of these is a permanent statute throughout your generations.