Light of the World Jesus told His followers, “You are the light of the world”(Matthew 5:14). So, “we must live decent lives for all to see”(Romans 13:13). You never know when someone is watching you. If a Christian repeats the same sin over and over, what kind of testimony is that? But if you are living for Jesus, you can be a godly example to those around you – even in places where it is unsafe to talk about Him.