A maxim in the political world says, "Treason never prospers; what's the reason? If it prosper, none dare call it treason." The parallel maxim in ecclesiology would be, "Heresy never prospers, for if it prosper, none dare call it heresy." Is this the reason that we never hear of any minister or seminary professor being charged with heresy, despite the apostasy all around us, even in Reformed churches? Is this why we never hear of any church court accusing a false teacher of being a false teacher?
The Old Testament is replete with warnings about false prophets. The New Testament is replete with warnings about false teachers. Twenty-two of the twenty-seven books of the New Testament contain such warnings. The churches are filled with theological confusion, error, and unbelief, yet we never hear these warnings from the lips of church leaders. Instead, we see false teachers honored as "esteemed brethren." We see them accepted and even honored by the churches. And we see those who would confront them in the spirit of Elijah, those who would strip away the sheep's clothing and expose the wolves, sanctimoniously condemned as troublemakers, unloving, and schismatics. Heresy must be prospering in the churches, for none dare call it heresy.
Let us heed Paul's words: "For I know this, that after my departing grievous wolves shall enter in among you, not sparing the flock. Also of your own selves shall men arise, speaking perverse things, to draw away disciples after them. Therefore watch, and remember that for the space of three years I ceased not to warn every one night and day with tears" (Acts 20:29-31). "For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ. And no marvel; for Satan himself is transformed into an angel of light. Therefore it is no great thing if his ministers also be transformed as ministers of righteousness, whose end shall be according to their works" (2 Corinthians 11:13-15).
~The Trinity Foundation on "The New Perspective on Paul"