If there are going to be people out there making war on other people, don't you think it's a good idea for some of those people to at least follow a code of ethics? Not 'honor' but something you can pin down and be sure of, something with the same rules for everybody.
Jude has a very different character. It is not the cradle of Christianity, or of the assembly on earth: it is its decay and its death here below. It does not keep its first estate.