Jamieson, Fausset and Brown on 2 Chronicles 9:13

13. Now the weight of gold that came to Solomon in one year--(See on 1Ki 10:14-29).

six hundred and threescore and six talents of gold--The sum named is equal to £3,646,350; and if we take the proportion of silver (2Ch 9:14), which is not taken into consideration, at one to nine, there would be about £200,000, making a yearly supply of nearly £6,000,000, being a vast amount for an infant effort in maritime commerce [Napier].