These are precious words. I don't care in what bank on earth you have your money. In the days of raging inflation, it seems like our money becomes absolutely worthless and useless. You may have a whole pocket full of bank notes, but they may not be able to buy you a loaf of bread. If you have the gold of heaven, however, that value will never change.
Silver is precious because it has a thousand different uses.
The Bible too has a thousand different uses. God's words are useful in so many ways. Silver is used as ornaments to adorn the body. These precious words too ought to be our ornaments. We ought to wear them as frontlets between our eyes.