In our effort to hold fast to the things we were taught either by world or letter, the true doctrines of the faith, let us realize that there is a difference between being an apologist for the truth and being a heresy hunter. We are not called to root out heretics! We are called to hold fast to the truth. This may require speaking and confronting, but we must take great care that public dialogue does not deteriorate to sinful discourse, conjecture, rumor mongering, and accusation. This is also harmful to the church!
"Likewise, the tongue is a small part of the body, but it makes great boasts. Consider what a great forest is set on fire by a small spark. The tongue also is a fire, a world of evil among the parts of the body. It corrupts the whole body, sets the whole course of one’s life on fire, and is itself set on fire by hell."