This letter, dating back to the 8th century, really struck a chord. This is, after all, a blog about Christian unity from the perspective of the Catholic Church. It is not a unity formed as of a federation of independent bodies. It is a unity that was instituted from the beginning, to which several who have been away must return. Not for the sake of tranquility with truth watered down. In His gracious love, God wants us to have it all -- Truth, uncompromised -- so we must strive to cooperate with his will and accept his truths, even when they hurt, even when they're hard to accept, and even when they divide. Being the pillar and foundation of truth, what can justify abandoning the ark of salvation? I am convinced more than ever of this: nothing. For this ship is no earthly vessel, and its crew may be errant humans but her captain is not. At journey's end, the world would see one bride, human, bloodied and triumphant, not several brides who have cause to argue vehemently about who the groom really is. There is one bride, the Church. There is one Spirit that dwells in her and brings Truth, unambiguous. We may never abandon this Church, since it was not we who built her.