Let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven.
Christianity is a religion of works, but not works leading unto salvation. Paul tells us in Ephesians 5:8-9, For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast. We are saved by grace, but because of grace we are prone to say that there are no works in Christianity. But we cannot escape our Lord’s words in Matthew 5:16: let your light shine so that others may see your good works.
What we do demonstrates the truth of what we say. Christianity is a religion of words as well as works – we tell people about our faith, we study the Scriptures, we discuss the teachings of the Bible. But words alone are not enough. James tells us this in James 2:14: What good is it, my brothers, if someone says he has faith but does not have works? Can that faith save him?
If our claim is not demonstrated by our actions, is there any validity to our claim? When we tell people the truth about man and God, but we proceed to live as though there were no God, what will they think of our words? But when the world sees people who put their faith into action, it gives validity to our claims. The result in our lives is obedience and growth. The result in the world is people giving glory to God. So get out there, let your light shine.