What's the difference between faith and self-hypnosis?
What if my belief turns out to be false?

King David had faith that he should kill some other people because G-- told him to.
So, he did kill a lot of people--from children to elderly, mercilessly.

Hitler had faith that he should kill some other people (J--ish) not because he believed G-- told him to but he just believed he has to kill those people.
So, he did kill a lot of people--from children to elderly, mercilessly.

What's the difference between David and Hitler?
Those are two self-obsessed and self-hypnotized people just like everyone else (maybe I can't say 'everyone else' because I have never been 'everyone else'. But I think it is plausible to say 'just like me' at least).
What if I'm like Hitler, not David?
What if after a few decade people curse me because of my belief?
We're having a war in Iraq. Many support it and many doesn't.
I think it can turn out in different ways through out the history. People will maybe think of G.W. Bush like David, or like Hitler after a few decade.
Who knows?
And how about me?
Will I be considered as a 'good person'? Because everyone thinks they are 'right' and 'good' (at least I do. I mean I'm not exactly thinking that I'm 'good' or 'righteous' but I think I'm wanting to be 'good'.), I mean because everyon thinks THEY are 'right' and 'good', no one can judge others (because each individual is thinking s/he is 'right' which kind of implies the complement of themselves is 'wrong').

It getting no where I guess. So, I am here. I think I'm kinda 'good' just like others according to each person's perspective. Then, who will be the judge to partition 'good' from 'evil'?
How come I think (or most people think) David is better than Hitler? Can I judge like that?