And how do you know who these are? How can you know that I might not be one?
22Who is the liar but the one who denies that Jesus is the Christ? This is the antichrist, the one who denies the Father and the Son. 1 Jn 2:22
We also have the example of the Bereans who searched the Scriptures in Acts 17 as en example.
I would measure your teaching against the Word. If found to be in contradiction of truth you would be a false prophet.
Hence the Christian concern with catholics bowing and praying to Mary and invoking her as co-redemtrix and mediator in contradiction of the NT that teaches we only have ONE mediator and Redeemer and that prayers are directed to the Father or Christ and never to Mary in the NT.