Not being easily able to find the post you reference, Ill helpfully provide: The question of who is my neighbor was not a random question. There were many teachers of the law doing the gather disciples and travel and teach thing. And interpretation of the law varied among teachers 1/

So a good way to sus out how 'broadly' the teacher interpreted the law was to ask, 'the law says to love my neightbor, who is my neighbor'. Almost everyone can agree your local community were, and some might agree as much as a nation. 2/