Our English word pearl is derived from Sanskrit, meaning "pure." The biblical concept of holiness carries the idea of purity with it.
The pearl is an interesting study. Unlike other gems, pearls are produced by a living organism, an oyster, as the result of an injury. It usually begins forming around a grain of sand or an egg of some parasite that invaded the oyster. The oyster protects itself by layering the irritant with nacre—mother-of-pearl—until, out of pain and suffering, it forms an object of great beauty. The offending particle actually becomes a gem of great worth!
So it is with us spiritually. We are an irritant, a botch, a scab on God's creation because of our nature and our sins. But because He loves us, we are covered by the blood of Jesus Christ, and gradually we can become a thing of beauty, clothed with the righteousness of Him who bought us.
We can make a number of other comparisons between pearls and other objects used as teaching vehicles in the Bible, such as the mustard seed. Both begin as something quite small but achieve different results. The mustard seed grows into the largest of herbs, but the pearl remains small. What is the lesson? Size does not determine value.
We can make a second comparison with ourselves. The pearl is first embedded in a mass of live but corruptible flesh, then separated and cleansed from its surroundings so that it can appear in its purity and beauty. So it is with the church. It is surrounded by, deeply embedded in, this corruptible world, and must be separated from the world before it can make a proper witness. As long as the pearl (church) remains in the oyster (world), it is of no value.
The production of the pearl is a gradual, even tedious, process. Slowly, the oyster adds layer after thin layer of nacre until the pearl is transformed. So it is with the church. For nineteen-and-a-half centuries, it has been in the making. If we add all who will be in the first resurrection from the time before Christ, then God has been working and adding to its lustrous value for almost six thousand years! All of this has occurred, and the world has hardly noticed, if at all, that this awesome process was progressing right under its nose.
In essence, the formation of the pearl is happening in secret. Colossians 3:3 says that our "life is hidden with Christ in God." Jesus tells His disciples: "If you were of the world, the world would love its own. Yet because you are not of the world, but I chose you out of the world, therefore the world hates you" (John 15:19). The world does not know where God's truth is transforming people into beings of glorious beauty. They are now just as we were before God revealed Himself to us. They are blind to the beauty of holiness. In fact, they are not merely blind, but as this verse shows, hostile to it.
Drawing the comparisons further, we know the oyster is at home in the depths of the ocean, a scavenger living off the garbage that sinks to the bottom of the sea. Revelation 13:1 shows the beast rising out of a sea: "Then I stood on the sand of the sea. And I saw a beast rising up out of the sea, having seven heads and ten horns, and on his horns ten crowns, and on his heads a blasphemous name."
The Bible often uses a sea to represent multitudes of people, sometimes multitudes of enemies. Revelation 17:15 says, "And he said to me, 'The waters which you saw, where the harlot sits, are peoples, multitudes, nations, and tongues.'" Isaiah 59:19 reads, "the enemy comes in like a flood." God must take the pearl, the church, from among the ungodly just as the oyster must be lifted from the muck and mire of the sea bottom.
Psalm 18:4-6, 15-16 expresses this analogy beautifully:
The pangs of death encompassed me, and the floods of ungodliness made me afraid. The sorrows of Sheol surrounded me; the snares of death confronted me. In my distress I called upon the LORD, and cried out to my God; He heard my voice from His temple, and my cry came before Him, even to His ears. . . . Then the channels of waters were seen, and the foundations of the world were uncovered at Your rebuke, O LORD, at the blast of the breath of Your nostrils. He sent from above, He took me; He drew me out of many waters.
So the church, an object of beauty to God, is presently hidden from the world because they do not really know true value when they see it. But it will not be that way for long.