That Jesus is a creature and not God in the flesh.
That the Holy Spirit is an “impersonal active force” and not a person.
That salvation is by works (cleaning one’s self up so you can become a Jehovah’s Witness, making sure you put in enough field service hours, meeting attendance, mustering up the willpower to keep yourself morally pure, etc.) - and NOT by grace (alone) through faith (alone) in Christ (alone).