First of All, I recommended Christianity in Crisis because it contains a detailed account of false teachings. In fact, I heard that if you order the audio book you can heard actually hear them making the false teachings.
And when we read the Bible and attempt to apply its teachings. We see how hersey was publicly opposed, not ignored. Books of the New Testament were written to refute false teachings. Paul publicly rebuked Peter for his withdrawing from eating with the gentiles(his refusal to eat was a theological issue). And Paul publicly rebuked others by name (see 2 Tim 4:10.)
How would you respond to a minister who persisted in making false teachings? What is the Biblical response?
The biblical response is take someone with you and reprove, rebuke, and if they don't hear you or receive the truth, recognize them as in error and false and go out the door...from such turn away, dust off your feet, have no fellowship with the unfruitful works of darkness. They are of their father, the devil and you cannot compromise with Truth. Ecumenicism is, of course, of the devil and the antichrist and most who say they are Christians seem to practice some form of ecumenicism.
I wasn't suggesting Benny Hinn wasn't false. He likely is false. I was suggesting that Hannegraff may also be equally false. I used to listen to Hannegraff on the radio, then started seeking the Lord and the Lord pointed out many more were false than I had thought and I think Hannegraff spouts many of the false doctrines of the day. Read false prophets (click here). Scott Hofstee who accurately prophesied the WTC fall before it happened wrote that anyone selling their ministry is false and that seems right even though it includes a most ministries including radio and tv ministries and the whole Christian Book Seller's Convention.