As Christians we are not called to live two lives. By sight while in this world and by faith while in the presence of other Christians. We are called to a separated life, to be renewed in our minds and to live according to our new life in the Spirit by faith in the Son of God. The old life is to be put off - because it is no longer who you are in Christ Jesus. To compromise between two lives is to be lukewarm and unstable in all your ways. If Jesus is your Lord - then seek His kingdom first and live for Him only.