The best way to respond when you think someone is doing that to you is to respond to each one so that you avoid making a blanket statement calling another person a "liar". You were asked to show proof of such accusations and you failed to do so yet you continued to assert the other was lying. Frankly, I'm surprised you got away with using those words so many times without a rebuke by the moderators. Maybe they were busy with their families and the holidays, but you got away with things the rest of us know better than to say.
Again, if you believe someone is misquoting you, respond to it stating what they misquoted. If someone "misuses" your words, call them on what they misused (maybe it is only a semantics or understanding issue and not a blatant lie). As for "taking Scripture and omitting key content", that is something that can easily be addressed by quoting the entire verse and those surrounding it - something I have to do on a regular basis when contending with RCs here. Very, very few folks here intentionally distort or lie about issues here, it's too easy to be exposed for doing it. FReepers are a pretty smart bunch!
Words such as "false" "error" "wrong" do not attribute motive.
Also do NOT accuse another Freeper of any mental disorder. That is also "making it personal."
Discuss the issues all you want, but do not make it personal.
I did that several times, and every time, my comments were repeatedly distorted into somethine else. When I clarified false references to Catholic doctrine, that person simply repeated the false doctrine again, omitted and distorting information, and knowingly repeated false information. That person acts as if they had some sort of authority and knowledge about the Catholic church, and simply repeats false statements. That is deception. God is not deceptive.