Numbers 10:3-7

Living Bible

³ When both trumpets are blown, the people will know that they are to gather at the entrance of the Tabernacle. ⁴ But if only one is blown, then only the chiefs of the tribes of Israel shall come to you.

^5-7 “Different trumpet blasts will be necessary to distinguish between the summons to assemble and the signal to break camp and move onward.^[a] When the travel signal is blown, the tribes camped on the east side of the Tabernacle shall leave first; at the second signal, the tribes on the south shall go.