And the sons of Aaron, the priests, shall blow the trumpets. The trumpets shall be to you for a perpetual statute throughout your generations.
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 the sons of Aaron the priests shall blow with the trumpets,.... Eleazar and Ithamar, the one with the one and the other with the other, there being at first but two, as there were but two priests; but in Solomon's time there were an hundred twenty priests, and as many trumpets, Ch2 5:12; hence Maimonides says (l), there were never fewer than two trumpets...
the sons of Aaron the priests shall blow with the trumpets, &c.--Neither the Levites nor any in the common ranks of the people could be employed in this office of signal giving. In order to attract greater attention and more faithful observance, it was reserved to the priests alone, as the Lord's ministers; and as anciently in Persia and other Eastern countries the alarm trumpets...