For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
There is only one mediator between God and man, Jesus Christ (1 Timothy 2:5.) There is only one flock and one shepherd. (Isaia 55:1-11)
John 10:16 says, "Heaven and Earth shall pass away, but my words shall not pass away." (also Mk 13:31, Lk 21:33)
It's simple.. whatever the false prophets say is contrary to the word. Falsehood doesn't align with the written word of GOD.