Numbers 10:1

The Silver Signal-Trumpets. - Although God Himself appointed the time for removal and encampment by the movement of the cloud of His presence, signals were also requisite for ordering and conducting the march of so numerous a body, by means of which Moses, as commander-in-chief, might make known his commands to the different divisions of the camp. To this end God directed him to prepare two silver trumpets of beaten work (mikshah, see Exo 25:18), which should serve "for the calling of the assembly, and for the breaking up of the camps," i.e., which were to be used for this purpose. The form of these trumpets is not further described. No doubt they were straight, not curved, as we may infer both from the representation of these trumpets on the triumphal arch of Titus at Rome, and also from the fact, that none but straight trumpets occur on the old Egyptian monuments (see my Arch. ii. p. 187). With regard to the use of them for calling the congregation, the following directions are given in Num 10:3, Num 10:4 : "When they shall blow with them (i.e., with both), the whole congregation (in all its representatives) shall assemble at the door of the tabernacle; if they blow with only one, the princes or heads of the families of Israel shall assemble together."

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 even in this matter, small as it seems. Moses is here directed, 1. About the making of them. They must be made of silver; not cast but of beaten work (as some read it), the matter and shape, no doubt, very fit for the purpose. He was now ordered to make but two, because there were but two priests to use them. But in Solomon's time we read of 120 priests sounding with trumpets, Ch2 5:12. The form of these trumpets is supposed to have been much like ours at this day. 2. Who were to make use of them; not any inferior person, but the priests themselves, the sons of Aaron, Num 10:8. As great as they were, they must not think it a disparagement to them to be trumpeters in the house of God; the meanest office there was honourable. This signified that the Lord's ministers should lift up their voice like a trumpet, to show people their sins (Isa 58:1), to call them to Christ, Isa 27:13. 3. Upon what occasions the trumpets were to be sounded. (1.) For the calling of assemblies, Num 10:2. Thus they are told to blow the trumpet in Zion for the calling of a solemn assembly together, to sanctify a fast, Joe 2:15. Public notice ought to be given of the time and place of religious assemblies; for the invitation to the benefit or ordinances is general: whoever will, let him come. wisdom cries in the chief places of concourse. But, that the trumpet might not give an uncertain sound, they are directed, if only the princes and elders w…

10:1-10 Israel needed signals that were loud and clear so that the tribes could receive instructions. Two silver trumpets provided a simple, effective means to signal all the tribes to move. • These trumpets were not the ram’s horns (Hebrew shopar) mentioned frequently in the Old Testament (e.g., Josh 6:4-6); they were fashioned by Israelite craftsmen from hammered silver brought out of Egypt.