Jesus spoke to the people once more and said, “I am the light of the world. If you follow me, you won’t have to walk in darkness, because you will have the light that leads to life.” [John 8:12 (NLT)]
A business friend took us upstairs at his corporate center and then turned out all of the lights. With blackout curtains covering the windows, we were in complete and utter darkness. As our eyes adjusted to the dark, we saw glowing strips marking the perimeter of the room and around the door. A luminous exit sign was above the door and the doorknob was marked with a glowing circle around it. In spite of the blackness, we easily found our way to the door. When we opened it, another glowing sign warned us “Caution—watch your step.” Although the stairwell was pitch black, we weren’t frightened because the hand railing, baseboards, and edges of every stair were marked with glowing strips and another exit sign, outlined door, and marked doorknob indicated the way out of the dark stairway. That luminous greenish light safely guided us even when we couldn’t see where we were going.
My friend manufactures photoluminescent tapes and signs and it was his products that were glowing in the dark. He explained that photoluminescence occurs when a substance is capable of absorbing energy photons, storing them and then emitting them as a glowing greenish or yellow light. His products also glow in the light but, because of the ambient light, our eyes don’t see the glow; they seem brightest in the darkness!
Light and dark in the Bible are usually metaphors for good and evil, God and Satan, believers and unbelievers. Maybe it’s because I write Christian devotions but, after seeing how that glowing light led us through the building, I couldn’t help but think about the light of Christ that leads us. Just as the purpose of those photoluminescent products is to give off light, Christians are called to be the light of the world. Needing neither electricity nor batteries, those tapes and signs must absorb external light before they can make light of their own and it is Christ’s light that enables us to illuminate the world’s darkness; we can’t do it on our own. And, just as those photoluminescent tapes and signs seem brightest in the dark, the light of Christ shines brightest in the shadowy and troubled times. While darkness can never overpower God’s light, His light can overpower the world’s darkness.
Photoluminescent products continually absorb ambient light and, when fully charged, can glow brightly for about 90 minutes. But, without being recharged by light, they’ll eventually run out of energy and stop glowing. While 90 minutes is more than enough time to guide one out of a burning building, Jesus expects us to have more than a mere hour-and-a-half worth of His energy in us; we are to shine 24/7! Moreover, if photoluminescent tapes and signs get dirty or covered with paint, they can’t do their job. The same goes for Christ’s followers, but it won’t be dust, mud or paint that will soil us; rather, the filth of the world can keep us from lighting the way. We must keep ourselves free from sin and continually recharge with prayer, Scripture, fellowship, study, worship, praise and thankfulness.
Jesus led us from darkness into light. Are we doing our part to lead people to the fire exit and safely home to the Lord? Do we live as people of the light and glow with the glory of the Lord?
The fundamental principle of Christianity is to be what God is, and he is light. [John Hagee]
For once you were full of darkness, but now you have light from the Lord. So live as people of light! [Ephesians 5:8 (NLT)]
You are the light of the world—like a city on a hilltop that cannot be hidden. No one lights a lamp and then puts it under a basket. Instead, a lamp is placed on a stand, where it gives light to everyone in the house. In the same way, let your good deeds shine out for all to see, so that everyone will praise your heavenly Father. [Matthew 5:14-16 (NLT)]
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