Defending the Opposite
Question
Dear Rabbi,
I am searching for a Jewish tradition that I have heard of but cannot find online.
When there is conflict and everybody is for one position, isn't there a tradition that no matter how plausible it is to defend that position, one person will be dedicated to defend the absolute opposite position? Something like that.
I am looking for this tradition as I may have to defend my sister in such a manner because I love her. In short: It is a family argument and it could put peace to this. It is about the burial of my grandmother and it could happen that she'll be excluded because she is rebellious to how we want the burial to happen. If I would exclude myself too in case she is then afterwards she would have nothing much to say anymore for having been excluded.
Please let me know what is behind that tradition ans where I could find something to read about.
Thanks for your help in advance.
Kind regards
Patrick