1 Peter 1:7
These have come so that your faith—of greater worth than gold, which perishes even though refined by fire—may be proved genuine and may result in praise, glory and honor when Jesus Christ is revealed.
Even though there have been many new discoveries of minerals and various elements since ancient times, gold is still one of the most valuable. While it is still desired for its beauty and used in jewelry, it is also used in certain electronics.
Despite its continued value and desirability, Peter reminds us that our faith is worth more than gold even. Like gold, our faith is refined by fire. During these times of stress, the impurities are burned out so that what is left is pure and perfect.
Gold will deteriorate however. It will lose its luster and eventually it will break down like any other natural component.
On the other hand, our faith grows greater with time. It becomes more perfect the longer we hold it. Each test that we face does not devalue our faith but makes it greater when we come out of it.
In the end, all of the riches of the world will be left behind. The only thing of value will be our faith and what we did with it on earth. And it will result in praise, glory, and honor when we meet Jesus.