Matthew 18:15-20 (ESV)
"If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother.  But if he does not listen, take one or two others along with you, that every charge may be established by the evidence of two or three witnesses.  If he refuses to listen to them, tell it to the church. And if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector.  Truly, I say to you, whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.  Again I say to you, if two of you agree on earth about anything they ask, it will be done for them by my Father in heaven.  For where two or three are gathered in my name, there am I among them."
Let him be to you as a Gentile and a tax collector… I often wonder what this means. I mean I get it on the surface. Jesus is speaking with Jews who did not have much to do with Gentiles and tax collectors. They were outcasts to say the least. You get the idea in scripture that these types of people were all but shunned. Of course, Jesus does mention that the Pharisees were willing to travel quite some distance to make a convert, but then that convert became twice as bad as they were. The point being though that Jews did interact with gentiles. Tax collectors? Well not in public if they weren’t actually paying taxes. Tax collectors had friends though. They threw lavish parties it seems. Jesus was invited to a couple. Evidently these parties were about good food, fine wine, and loose women, as these are the women always showing up to wash Jesus’s feet and so on. And from this we learn how we are supposed to treat Gentiles and Tax collectors it seems to me.
They aren’t to be shunned, but loved. You are to hold out to them forgiveness. This does not mean you ignore the sin though. As long as they do not repent, they are outside the community. But forgiveness is always there waiting. These are people to be loved and prayed for, and none of this is to be taken lightly. Forgiveness and love must reign. These are people for whom Christ died.