1 Kings 10:21

And all king Solomon's drinking vessels were of gold, and all the vessels of the house of the forest of Lebanon were of pure gold; none were of silver: it was nothing accounted of in the days of Solomon.

All king Solomon's drinking vessels were of gold ... The magnificence of Eastern monarchs was generally indicated by a profuse display of gold and silver vessels in their palaces. All these products may still be procured in great abundance in Ceylon, which Bochart considered to be Ophir, to which Solomon's fleet traded.