But where do you draw the line?

Interesting concept but where do you draw the line?  What am I talking about?  Read this passage and then I'll explain.

Romans 16:17-18(NKJV)

Now I urge you, brethren, note those who cause divisions and offenses, contrary to the doctrine which you learned, and avoid them. 

For those who are such do not serve our Lord Jesus Christ, but their own belly, and by smooth words and flattering speech deceive the hearts of the simple. 

So we have Paul here telling us to shun certain people.  I have mixed feelings here.  On the one hand I agree that we should not tolerate people who try to cause division and teach things that are contrary to Scripture.  On the other hand I can see how this Scripture could be used by Church authorities to try to suppress legitimate opposition. 

The Covenant Church had a great saying.  "Show me where it is written".  We may have a disagreement but if you can show me where in Scripture you are getting your view from then at least we could agree to disagree.  However if you couldn't show where your view was in Scripture then you lose.  :)