User blog comment:SamWinchester666/Question for Supernatural/@comment-79.115.72.222-20150817145431

We don t know if the first blade can kill god, death or the archangels.

we know that is the only weapon that will kil a knight of hell. And can kill almoust every being in the supernatural universe ,exception maiby Darkness, Death , God , Archangels , Levitahans , Eve.