|Image from The Temple Institute|
The trumpet - What a significant instrument of the Lord. It had to made of hammered silver and the orders were...When both are sounded in long blasts, the entire community is to gather before you at the entrance to the tent of meeting. However if one is sounded only the leaders, the heads of Israel's clans are to gather before you.
When you sound short blasts, the camps pitched on the east are to set out. When you sound short blasts a second time, the camps pitched on the south are to set out. Short blasts are to be sounded for them to set out,,,When calling the assembly together, you are to sound long blasts, not short ones...The sons of Aaron, the priests, are to sound the trumpets. You use of these is a permanent statute through your generations.
THIS PART IS INTERESTING.
Verse 9 When you enter into battle in your land against an adversary who is attacking you, sound short blasts on the trumpets, and you will be remembered before the Lord you God and be delivered from your enemies.
This brought to mind the wars of past of using a trumpeter to march the soldiers into battle. They new then if they did this the Lord was with them and would deliver them from their enemies.
Exodus 40: 1-15 When everything was complete God gave instructions to Moses to anoint and consecrate. This anointing will serve to inaugurate a permanent priesthood for them throughout their generation.
Moses was given instructions to the tribe of Levi to assist him and to take care of the tent of meeting and perform duties for the Israelites by attending the service of the Tabernacle and the total amount of men to perform these duties was 22,000.