“But if we are living in the light, as God is in the light, then we have fellowship with each other, and the blood of Jesus, his Son, cleanses us from all sin.” The Apostle John declares that God is light (vs. 5). So, if you are in fellowship (in a relationship) with God, then His light shines on you so that you are living in the light. A Canadian band, Newworldson, recorded a song that expresses the heartfelt desire of all who are living in the light of God to learn to be His light to others. The lyrics of the chorus of the song say:
It’s so much brighter living in your world
Savior what you did for me
You gave me something I want everyone to see
When we stumble and it all goes wrong
Only you can make it right
So I say I’m learning to be the light
God doesn’t want you just to bask in the warmth and illumination of His light. He wants you to reflect His light to others. When you live in the light of God’s reality, then sooner or later you must start reflecting the light of God’s reality–you must learn to be the light. God wants you to be the light so that the light of His reality can be seen in this world in you! “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” (Matthew 5:14-15).
“If we say we have fellowship with him while we walk in darkness, we lie and do not practice the truth. But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.” The Apostle John says in the preceding verse (vs. 5) that God is light. Therefore, those who walk in darkness are not walking with God, no matter what they say. John says that if you are walking in darkness then you are not practicing the truth. By contrast, those who walk in the light reflect God’s glory; they walk in the same way Jesus walked (vs. 2:6). The light in which they walk includes both correct doctrine (truth) and God’s moral law (holiness). If you “walk in the light” then you practice the truth and your behavior is consistent with your doctrine. When you live your life each day according to God’s redemptive love and moral law, then you are living the truth. You are like a practitioner of the truth, a truth professional. Just as doctors practice medicine and attorneys practice the law, Christians practice truth. As a practitioner of truth, when you “walk in the light” then your life is known to others: “You are the light of the world…let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven” (Matthew 5:14-16). Be a truth professional and let the way you live your life and the way you say you live your life be one in the same and to the glory of God, and the blood of Jesus Christ will cleanse you from all sin.