1 Kings 10:14 - Joseph Benson’s Commentary on the Old and New Testaments

Now the weight of gold, &c. The history of the queen of Sheba being ended, the writer returns to give an account of Solomon's riches and magnificence, which he had begun to set forth before. And first he relates what a vast quantity of gold was brought into his kingdom every year, not only from Ophir, but from other countries, into which, perhaps, the queen of Sheba opened him a way, and particularly from Arabia and Ethiopia, which then were replenished with gold, though exhausted by the insatiable avarice of succeeding ages. Six hundred threescore and six talents Which amount to about three millions of our money.