Answer:
I may only be given but never bought. Sinners seek me but saints do not. (one word).
What breaks when you say its name?
Tear one off and scratch my head what was red is black instead. What is it?
I say everything I hear to others around. Iβm not an animal nor part of the human race. I will immediately repeat after you; But only if my tail is in place.
They took me from my mother's side where I was bravely bred and when to age I did become they did cut off my head. They gave to me some diet drink that often made me mad but it made peace between two kings and made two lovers glad.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?