dear MrTheocratic...
Paul is making a distinction between those in the congregation (where you would share a fellowship meal including the elements with the "brother") and those who are outside. He says in verse 10 that he didn't mean stop associating with these people outside the fellowship. If the "brother" is removed from the fellowship ie: disfellowshipped...he becomes part of the world, no longer a "brother". In which case he can be associated with as paul says because he no longer "contaminates" the purity of the "bride" or congregation which was the point in disfellowshipping. The JW's have no scriptural grounds for SHUNNING outside the doors of the kingdom halls. Jesus didn't shun and paul didn't encourage it either. Paul says it another way and for a different reason...if someone comes to your house (for fellowship as was the case in the early church) and he doesn't have the doctrine of Christ, don't allow him in or your have a part in his evil ways. Again, this is about the purity of the fellowship not about associations outside the congregational fellowship "meetings"
If you look at the context of the statement about "it isn't what enters the mouth that defiles a man but what comes out" it is talking about transgressing the commandment of God which the pharisees were doing with their traditions of men. Jesus was saying that the fact that His disciples didn't wash their hands only introduced germs that would be later eliminated. The pharisees introduced traditions of men that weren't eliminated...these traditions came out of their mouths and resulted in transgression of the law.
Paul didn't give the go ahead to eat "whatever". Being a torah observant jew, the foods that were meant to be received with thanksgiving were kosher only. There were judaizers that were forbidding the eating of (presumably market meats that were purchased daily where one wouldn't know) meats that were given by God to be eaten because they COULD have been used in sacrifice to idols. Paul said basically don't worry...buy the kosher meat and it will be sanctified by your prayer over it. IF you are invited to someones house and they tell you that the meat was used in idol worship then don't eat it...in doing so you will affect the conscience of those gathered. (negatively for those who are not wanting to eat things used in idol worship or for those that don't care it would be positive affirmation that it doesn't matter what a christian eats. Paul was saying it's a bad witness all around if you KNOWINGLY eat foods used in idol worship)
love michelle
