Taken put of context yet again.
Now what?
If your brother or sister sins, go and point out their fault, just between the two of you. If they listen to you, you have won them over. But if they will not listen, take one or two others along, so that every matter may be established by the testimony of two or three witnesses. If they still refuse to listen, tell it to the church; and if they refuse to listen even to the church, treat them as you would a pagan or a tax collector.Consider that Jesus could have said, "tell it to ME." But He didn't. He said, "tell it to the church." In His lifetime, His Church spoke with His Authority.
Have the gates of hell prevailed against His Church?