And when you go to war in your land against the adversary who oppresses you, then you shall sound an alarm with the trumpets, that you may be remembered before the LORD your God, and you shall be saved from your enemies.
We have here directions concerning the public notices that were to be given to the people upon several occasions by sound of trumpet. In a thing of this nature, one would think, Moses needed not to have been taught of God: his own reason might teach him the conveniency of trumpets; but the constitution of Israel was to be in every thing divine, and therefore...
Commenting on Numbers 10:1-10
And when ye go to war in your land against the enemy that oppresseth you,.... That enters in to invade it, to besiege cities, and distress the inhabitants of it: then ye shall blow an alarm with the trumpets: a "tara-tan-tara" with both of them, to call the several tribes together to join against the enemy; or to call them to fasting and humiliation, to...
If ye go to war--In the land of Canaan, either when attacked by foreign invaders or when they went to take possession according to the divine promise, "ye [that is, the priests] shall blow an alarm." This advice was accordingly acted upon (Num 31:6; Ch2 13:12); and in the circumstances it was an act of devout confidence in God.