Exo 38:29-31
The copper of the wave-offering amounted to 70 talents and 2400 shekels; and of this the sockets of the pillars at the entrance of the tabernacle (Exo 26:37), the altar of burnt-offering with its network and vessels, the supports of the pillars of the court, all the pegs of the dwelling and court, and, what is not expressly mentioned here, the laver with its support (Exo 30:18), were made. בּ עשׂה to work in (with) copper, i.e., to make of copper.
If this quantity of the precious metals may possibly strike some readers as very large, and was in fact brought forward years ago as a reason for questioning the historical credibility of our account of the building of the tabernacle, it has been frequently urged, on the other hand, that it looks quite small, in comparison with the quantities of gold and silver that have been found accumulated in the East, in both ancient and modern times. According to the account before us, the requisite amount of silver was raised by the comparatively small payment of half a shekel, about fifteen pence, for every male Israelite of 20 years old and upwards. Now no tenable objection can be raised against the payment of such a tribute, since we have no reason whatever for supposing the Israelites to have been paupers, notwithstanding the oppression which they endured during the closing period of their stay in Egypt. They were settled in the most fertile part of Egypt; and coined silver was current in western Asia even in the time of the patriarchs (Gen 23:16). But with reference to the quantities of gold and copper that were delivered, we need not point to the immense stores of gold and other metals that were kept in the capitals of the Asiatic kingdoms of antiquity, but will merely call to mind the fact, that the kings of Egypt possessed many large gold mines on the frontiers of the country, and in the neighbouring lands of Arabia and Ethiopia, which were worked by criminals, prisoners of war, and others, under the harshest pressure, and the very earliest times copper mines were discovered on the Arabian peninsula, which were worked by a colony of labourers (Lepsius, Letters from Egypt, p. 336). Moreover, the love of the ancient Egyptians for valuable and elegant ornaments, gold rings, necklaces, etc., is sufficiently known from the monuments (see Rosellini in Hengstenberg’s Egypt, p. 137). Is it not likely, then, that the Israelites should have acquired a taste for jewellery of this kind, and should have possessed or discovered the means of procuring all kinds of gold and silver decorations, not to mention the gold and silver jewellery which they received from the Egyptians on their departure? The liking for such things even among nomad tribes is very well known. Thus, for example, after the defeat of the Midianites, the Israelites carried off so much gold, silver, copper, and other metals as spoil, that their princes alone were able to offer 16,750 shekels of gold as a heave-offering to Jehovah from the booty that had been obtained in this kind of jewellery (Num 31:50.). Diodorus Sic. (3, 44) and Strabo (xvi. p. 778) bear witness to the great wealth of the Nabateans and other Arab tribes on the Elanitic Gulf, and mention not only a river, said to flow through the land, carrying gold dust with it, but also gold that was dug up, and which was found, “not in the form of sand, but of nuggets, which did not require much cleaning, and the smallest of which were of the size of a nut, the average size being that of a medlar, whilst the largest pieces were as big as a walnut. These they bored, and made necklaces or bracelets by stringing them together alternately with transparent stones. They also sold the gold very cheap to their neighbours, giving three times the quantity for copper, and double the quantity for iron, both on account of their inability to work these metals, and also because of the scarcity of the metals which were so much more necessarily for daily use” (Strabo). The Sabaeans and Gerrhaeans are also mentioned as the richest of all the tribes of Arabia, through their trade in incense and in cinnamon and other spices.
From the Arabs, who carried on a very extensive caravan trade through the desert even at that time, the Israelites would be able to purchase such spices and materials for the building of the tabernacle as they had not brought with them from Egypt; and in Egypt itself, where all descriptions of art and handicraft were cultivated from the very earliest times (for proofs see Hengst. Egypt, pp. 133-139), they might so far have acquired all the mechanical and artistic ability required for the work, that skilled artisans could carry out all that was prescribed, under the superintendence of the two master-builders who had been specially inspired for the purpose.