As I have noticed the reason that most congregations have a problem with separation is in the small stuff, for example: my church years back before I attended had one person that had a problem with wine being used for communion. There is no passage in the word that says not to drink alcohol, however it does say not to get drunk. Now, I am fairly sure that no one is going to get drunk over the little bit that is shared over communion.
So why don't we just tell this person that the bible says it is ok, and in fact Jesus had a little wine as well. Here is your answer. This particular person may not be ready to accept this truth, he or she may have it imbedded in their head, and without the work of the holy spirit it would be fruitless to do so.
The apostle Paul covers this subject in the book of Corinthians chapter 8 verses 9 Be careful, however, that the exercise of your freedom does not become a stumbling block to the weak. 10For if anyone with a weak conscience sees you who have this knowledge eating in an idol's temple, won't he be emboldened to eat what has been sacrificed to idols? 11So this weak brother, for whom Christ died, is destroyed by your knowledge. So according to Paul it would be better not to drink wine as it may cause that brother or sister to stumble. I would even go as far to say to not have a heart that is looking down on the other for not understanding these things, because we were once in the same position. Maybe, it didn't have anything to do with the issue of wine, or in Paul's case meat.
We all have been given the grace to understand greater things, a gift of knowledge, given to us by the father. How then can we say because you have not been given athis same gift on knowledge yet in this area I will not associate with you? Are we not of the same body, and Is Christ not the head of the body? I believe we need to stop thinking about the knowlage and focus on the one who gave us that knowledge.
Thanks for listening
"Now about food sacrificed to idols: We know that we all possess knowledge. Knowledge puffs up, but love builds