What does the Bible say about the significance of light in creation?

In Genesis 1:14-19, God declares the creation of lights to divide the day from the night, which symbolizes His separation of light from darkness, life from death. These lights serve as witnesses to His creative power and point to the ultimate light, Christ Himself. The sun, moon, and stars reflect God's glory and serve as reminders of His sovereign control over time, seasons, and His divine plan, culminating in the light of Christ who illuminates the hearts of His people and guides them in truth.