We are all a creation of his handiwork, we all just have a different calling on how to display that work. But no matter what the spiritual gift is that we have been given, we must all walk in righteousness and light. Those of us who have received the gift of salvation must "walk the walk and talk the talk." Our talk must match our walk and our walk must match our talk. We have been set apart from the world and the world must see that there is just a little something different about us. Not that we are better, by no means. We must never forget where we came from and what God has done for us. Captives who have been set free are the most compassionate people in the world. They don't see others as less than themselves because they've lived a little (or a lot) of their own lives in the gutter too. We have just surrendered our lives to The Lord a little sooner than they have. But God willing, they will see the light too! :)
We must walk in holiness and love. We have to walk in His works & His calling for our lives. Not only that, we must excel in it. There should be a distinction between the saved and unsaved. Remind those who mock, judge, and make fun of Christians, WE ARE NOT PERFECT, WE JUST SERVE A PERFECT GOD.