Numbers 10:4-6

Lexham English Bible

⁴ But if they blow only one, the leaders, the heads of the thousands of Israel, will assemble to you. ⁵ When you will blow a blast, the camps that are camping on the east will set out; ⁶ when you blow a second blast, the camps that are camping on the south will set out; they will blow a blast for their journeys.