Whosoever ... abideth not in the doctrine of Christ, hath not God. 1:9
Trivia: According to 2 John 7, who is an antichrist?
Non-Christians are deceivers and antichrists. 7
Don't associate with non-Christians. Don't receive them into your house or even exchange greeting with them. This is the biblical justification for "Disfellowshipping" among the Jehovah's Witnesses. 10
