Me and my wife were having a conversation concerning this verse and she said to me that she would fellowship with another sister in Christ because she has backslidden and because of the life style she has indulged in. I told my wife that this scripture is talking about those who are saved and living a life in Christ Jesus. We are the ones that are to abstain from every kind of evil, But those who are living a sinful life, We are to be a witness for Christ and lead those who are lost and those who have back slided back to Christ or introduce them to Christ and present them the Gift of salvation which Christ had died for. We are not to indulge ourselves in their life style but to lead them to Christ. So as i said this verse is a verse that was written to remind us who are saved that we are to have the character of Christ and to be a shining example to them who don 't know Him or to them that have strayed away from the truth of the love that Christ has for everyone who believes upon Christ holy and Matchless name