Silver symbolizes redemption, so it was reasonable that God would command Moses to make trumpets out of this metal for the these purposes:
1. Call to war (Charge!!)
Num. 10:8-10 “And the sons of Aaron, the priests, shall blow with the trumpets; and they shall be to you for an ordinance for ever throughout your generations. And if ye go to war in your land against the enemy that oppresseth you, then ye shall blow an alarm with the trumpets; and ye shall be remembered before the LORD your God, and ye shall be saved from your enemies.”
2. Memorials (Taps)
“Also in the day of your gladness, and in your solemn days, and in the beginnings of your months, ye shall blow with the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; that they may be to you for a memorial before your God: I am the LORD your God.”
3. Call to assemble (Reveille!!)
V3 “And when they shall blow with them, all the assembly shall assemble themselves to thee at the door of the tabernacle of the congregation.”
LESSON - Military units have always used trumpets/horns for communication and commands. It has always been the most efficient way of signaling instructions to the entire body so that they might all move as one unit. WE ARE THE ARMY OF GOD! The sound has already gone out to engage in spiritual warfare. On occasion we are called to stop and remember God’s goodness and His blessings upon us. No where in this passage is there a sound for retreat because that should never be an option. We have been called to fight on until we hear the final trumpet mentioned in 1 Cor. 15:51-52 “Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed, In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.”
That’s when we ALL will finally assemble to our Commander in Chief at THE Tabernacle in Heaven!
~Mike