War of the words

Our beliefs don't seem to agree
So please won't you see
We have to battle it out
No talking about it over tea

One of us is not pure enough to exist,
The wrong religion
There can never be peace between us
not even a smidgen

I believe in "A", and you believe in "B"
A comes before B, so my letter must be true
You never did anything against me
But i'll drop the bomb and say screw you

Now the world is in full turmoil
All because we let this petty squabble boil
I'd like to be brothers, but you're just too wrong!
I'm forcing this silly little fight to be prolonged.