But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light. Once you were not a people, but now you are God's people; once you had not received mercy, but now you have received mercy. (1 Peter 2:9,10).
We are all flawed messengers. But we have a perfect message: It is the good news of Jesus Christ. We can tell people that God loves them, that God will forgive them, but they are separated from Him by their sin. However, if they will turn from their sin and put their faith in Christ, they can be forgiven. So here is my challenge to you: Don't isolate. Infiltrate. Jesus did not say that the whole world should go to church; He said that the church should go to the whole world. Jesus is the best kept secret that we have been chosen by God to tell the world. Let us not be ashamed of Jesus, the Gospel, or of being a Christian.