^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. ⁸ Only the priests are permitted to blow the trumpets. This is a permanent instruction to be followed from generation to generation.