Text: John 1:1–5
Scientists recently discovered something fascinating about light. The way we interact with light throughout the day doesn’t just affect our eyes—it shapes our emotions, our sleep, our memory, and even our ability to concentrate. In a study of over 300 people, researchers found that our “light behaviors” matter far more than we realize.
Think of it this way: just as we’ve learned that what we eat affects our physical and mental health, we’re now learning that we also need a healthy diet of light.
Those of us in the upper Midwest don’t need much convincing. Every year, beginning in September, the days shorten and the nights stretch longer. Less sunlight, colder temperatures, and more time indoors combine to create that familiar sense of heaviness that lingers from November through March. We feel it in our bodies—and often in our souls.
The study revealed three important things. First, people who spent more time outside in natural sunlight reported better moods and healthier sleep rhythms. Their bodies knew when to wake and when to rest—they were living in harmony with the rhythms God built into creation. Second, those who scrolled on their phones late into the evening struggled with delayed sleep, poor rest, and foggy thinking. Artificial blue light was telling their bodies it was still daytime when God designed it to be night. Third, people who used bright, natural-spectrum light in the morning slept better at night and felt more alert during the day. They aligned their habits with the order God established—and they flourished.
Why does this matter? Because our bodies still remember God’s original design: light and darkness, day and night. When we honor that rhythm, we thrive. When we resist it, we struggle.
That brings us to Christmas—and to the opening words of John’s Gospel.
John doesn’t begin the Christmas story with shepherds or angels or Bethlehem. He goes back further. Much further. “In the beginning…” Before creation. Before light and darkness. Before anything existed at all. John wants us to understand that Christmas is not simply about a baby born in a manger—it is about Light entering darkness at the deepest possible level.
John calls Jesus “the Word.” To Greek readers, logos referred to the rational principle that ordered the universe. To Jewish readers, God’s Word was His powerful self-expression—the force behind creation, covenant, law, wisdom, and salvation. John brings these ideas together and makes a stunning claim: the Word is not an idea, a principle, or a philosophy. The Word is a Person. And His name is Jesus.
The Word Is Eternal
John deliberately echoes Genesis 1: “In the beginning…” Jesus did not begin in Bethlehem. He did not start in Mary’s womb. He is eternal. He was with God. He is God. This is why His light matters. Jesus is not merely a teacher or moral example—He is the eternal Creator stepping into His creation. Christmas celebrates the infinite taking on the finite so that our darkness might be illuminated.
The Word Gives Life
John continues, “In Him was life.” Not just biological life, but true life—spiritual life, eternal life, life as God intended it to be lived. Life is not merely something Jesus gives; life is who He is. Just as all creation draws its existence from Him, so does our hope, our renewal, and our salvation. And John makes this beautiful connection: “That life was the light of men.” The life Jesus gives becomes the light we need—revealing truth, exposing what is broken, and guiding us toward what is good. It awakens the soul the way morning sunlight awakens the body.
The Word Brings Light Darkness Cannot Overcome
“The light shines in the darkness,” John writes, “and yet the darkness did not overcome it.” Darkness is real—sin, fear, confusion, grief, and a world that often feels like it’s unraveling. But darkness is not equal to light. Light always wins. Walk into the darkest room and turn on the smallest flashlight—darkness flees. That’s Christmas. Jesus didn’t come to avoid darkness; He came to invade it. And darkness cannot stop Him.
So let’s return to those discoveries about light. When people aligned their habits with God’s created rhythms, they thrived. When they didn’t, they struggled. The parallel is striking. Just as we need physical light to flourish, we need God’s Light even more.
What if spiritual burnout, discouragement, or numbness has less to do with our circumstances and more to do with our spiritual light diet?
Morning sunlight wakes the body—morning time with Jesus wakes the heart. Natural light elevates mood—time in God’s presence fills us with joy. Late-night screen time disrupts rest—constant noise and anxiety disrupt our peace. Darkness restores the body—Sabbath rest restores the soul.
Christmas reminds us of this simple truth: the Light of the world has come. Jesus, the eternal Word, stepped into the darkness to bring us life and light. So make intentional space in your daily rhythms for His light—through prayer, Scripture, worship, fellowship, gratitude, and service. Your soul needs it.
From the beginning, God established a rhythm: light and darkness. Our bodies still feel it. Our hearts still long for it. And at Christmas, God didn’t just create light—He became light. His light still shines, and nothing can extinguish it.
The Light has come.
Are we walking in Him?



