1. cunning spirit
2. corruptive ideas
3. clandestine manner
4. subtly introducing
5. false arguments
6. fabricated
7. deceptive
8. twisting
9. their own ideas
10. "do not have our best interests at heart"
11. mentally diseased
12. seek to infect others with their disloyal teachings
13. twisted teachings that contradict His word
Interesting! All I can add is, were they looking at a mirror when they wrote this? Pot, meet kettle...