If he refuses to listen to them, report it to the Church. And if he refuses to listen to the Church, treat him as you would a Gentile or a tax collector.
For they said to you, “In the final age there will be scoffers who will follow their own ungodly passions.” It is these people who create divisions, who follow their natural instincts and do not possess the Spirit.
I further pray that the eyes of your heart may be enlightened so that you may know the hope to which he has called you, how rich and glorious is his inheritance in the saints.