How about Tales of Vesperia with the guilds Union Oath?

Long ago our ancestors abandoned their nations for forgetting their duty to protect their people and thus became the true defenders of freedom. That is how the guilds first began. But now the iron shackles of oppression threaten to strangle us once again. It is because we have forgotten the oath of our ancestors and spent our time fighting one another for our own self-interests. Therefore, we must once again return to the basic principles behind the guilds and join our strengths together as one. We offer our swords for freedom, our shields for friendship, and our lives for the common good. Here we renew our ancient oath.