To test the genuineness of a diamond, jewelers often place it in clear water, which causes a real diamond to sparkle with incredible brilliance. An imitation stone, on the other hand, will have very little sparkle at all. When the two are placed side by side, even an untrained eye can easily tell the difference. In a similar way, the world can often notice the marked differences between genuine faith and those who merely profess to have faith. As with jewels, there is a noticeable difference in radiance, especially when people are undergoing difficult times. Many people have great confidence in their faith until it is severely tested by hardships and disappointments. How a person handles problems will reveal whether his faith is living or dead, genuine or imitation, authentic or counterfeited.