“God is light, and in Him there is no darkness at all.” (1 John 1:5). “Every good thing bestowed and every perfect gift is from above, coming down from the Father of lights, with whom there is no variation or shifting shadow.” (James 1:17)
If we are the children of God (1 John 3:1), and our Father is the “Father of Light,” then we must be “children of light.” And if He is so full of light that there is no variation or shadow in Him, then we, too, should be free of any shadows or darkness.
How can we be so? By continually keeping ourselves in His light. Matthew 6:22 tells us that if our eye is single, then our whole body will be full of light. And Psalm 119:30 promises that the entrance of His Word gives light. As we focus fully on Him and His light, we are drawn into it more and more completely, and His light itself fills us more and more thoroughly, until we are like Him — and it can be said of us: “They are children of light, and in them there is no darkness at all.