When God speaks, he does more than convey information. He changes reality. That was true when he pierced the world’s natural darkness with light in the beginning. It remains true as he speaks to us the good news about Jesus, the light of the world. Through that message he brings us light and enables us to see life as he sees it. This week we see how light and darkness cannot coexist. As the light of the gospel shines on a person’s heart, it expels the darkness of gloom, guilt, and doubt. It enables us to walk through life joyfully and confidently.