I Kings 10:28

Still Solomon looks great, and every thing in this chapter adds to his magnificence. We read nothing indeed of his charity, of no hospitals he built, or alms-houses; he made his kingdom so rich that it did not need them; yet, no question, many poor were relieved from the abundance of his table. A church he had built, never to be equalled; schools or colleges he need not build any, his own palace is an academy, and his court a rendezvous of wise and learned men, as well as the centre of all the circulating riches of that part of the world. I. What abundance of wisdom there was there appears from the application the queen of Sheba made to him, and the great satisfaction she had in her entertainment there (Kg1 10:1-13), and others likewise (Kg1 10:24). II. What abundance of wealth there was there appears here by the gold imported, with other things, yearly (Kg1 10:14, Kg1 10:15), and in a triennial return (Kg1 10:22). Gold presented (Kg1 10:25), and gold used in targets and shields (Kg1 10:16, Kg1 10:17), and vessels (Kg1 10:21). A stately throne made (Kg1 10:18-20). His chariots and horsemen (Kg1 10:26). His trade with Egypt (Kg1 10:28, Kg1 10:29). And the great plenty of silver and cedars among his people (Kg1 10:27). So that, putting all together, it must be owned, as it is here said (Kg1 10:23), that "king Solomon exceeded all the kings of the earth for riches, and for wisdom." Yet what was he to the King of kings? Where Christ is, by his word and Spirit, "Behold, a greater than Solomon is there."

10:28-29 In addition to his own accumulation, Solomon apparently served as a middleman, exchanging horses and chariots between the Egyptians to the south and the Syrians and Anatolians to the north.