You've been there done that, decoded it, learned the lingo, and got the T Shirt.
Seriously, give my suggestion a try. It won't corrupt you, I promise.
:)
Once a person understands his place in God's Plan for man, there is no stopping that person. He can and does preach the word, in season,out of season, reproving, rebuking, and exhorting with all longsuffering and doctrine.
They no longer live in fear. Fear of losing what they were taught they're not even sure they have..or fear of their works not being good enough, or that they will be swept around by every doctrine that comes along, or that God's wrath is waiting to be poured out on them. They are free. Free to be what God wants them to be: an ambassador for Christ. 2 Cor. 5:14-21.
They can read deceit and see it for what it truly is. There is no more doubt.
They are all of us who have accepted the finished work of Christ, who are saved by the blood of Christ, baptized into the Body of Christ by the Holy Spirit, sealed unto the day of redemption, and assured that we are there to stay.
Seriously, you should give it a try. It will save you. God's Word never fails.