QUOTE(pehkay @ Sep 28 2014, 08:38 PM)
Very serious.
The Lord also will not tolerate division. The Lord hates division because it destroys His people as His expression. In the Old Testament the children of Israel were God's people for His corporate expression. In the New Testament the corporate expression of the Lord is the Body of Christ. Whereas heresy insults and damages the person of Christ, division damages the Body of Christ. Division kills the Body of Christ and cuts it into pieces. Because heresy damages the Head and because division kills the Body, the Lord, in both the New Testament and the Old Testament, will never tolerate division.
Romans 16: 17 - I urge you, brothers and sisters, to watch out for those who cause divisions and put obstacles in your way that are contrary to the teaching you have learned. Keep away from them. 18 For such people are not serving our Lord Christ, but their own appetites. By smooth talk and flattery they deceive the minds of naive people. 19 Everyone has heard about your obedience, so I rejoice because of you; but I want you to be wise about what is good, and innocent about what is evil.
Indeed is very serious. But first, need to clarify one thing first, whether that person is a christian. And we know christian belong to a church (body of Christ). If in the first place, that person is NOT a christian, then this person does not belong to a church. So what that person did is as described below:
Matt. 7:15, "Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves." Even in the early days of the fledgling church, the Apostle Paul said this, "For I know this, that after my departing shall grievous wolves enter in among you, not sparing the flock. Also of your own selves shall men arise, speaking perverse things, to draw away disciples after them.", Acts 20:29-30.
In this case, the church leadership is to warn the member of the church to protect the church from that person. Otherwise, that person can continue to poison more and more to lead them astray from the church.
Second scenario is let's say that person is a christian or still a member of that church, the church leadership will talk, admonish and perhaps rebuke that person if that person continue to cause division. and if after much rebuke that person still do cause division, the church leadership will take discipline action (ie expel him/her from the church).
Of course that applies to church but not able to do the same in this thread

So the reader in this thread need to make your own logical judgement, who is/are the person who cause division among christian vs who are the person who build up one another.
As I have mentioned sometimes it is not easy to identify who is who. But what I have learn is one obvious way to identify them is by finding out the intention of that person saying such thing. Is this person saying this thing to help to build up the other person or to tear down Christianity? If that person want to give input to help or build up another person out of love, it should be done privately (PM) unless the recipient does not want to listen in privately.