Therein lies the rub....false hood to you can be different then someone else. .take "speaking in tongues".. there are people that think it is of the devil because it has passed away in their mind.. and thus they are called false teachers that teach on praying in tongues..so your argument has no merit on it's own.. sorry..
I am NOT the authority. They are proven false by their own words measured against scripture. It's not that difficult to see it. There is no version of truth. It either is or it isn't.
Yes everything must be taken back to scripture as it is the Word of God !!!
As for tongues is concerned above yes there are those who believe they have been done away with, because they misrepresent scripture to say they have................Thus this is false !!!
Then you have the other extreme:
Those who think babbling weird noises out loud is speaking in tongues.........Thus also is false and not supported by God's word.
For anything shown to be done out loud or for others to hear when it comes to tongues, is shown in the Word of God as known human tongues and must have a interpreter present.
Language of the angels is only to be done in quietly in personal prayers, not out loud !!!