Didn't Jesus say that the gates of hell would not prevail against His Church? I think that is protection. I don't agree with others who've said it means protect from any error at any time, but I think it means protect it nonetheless.
-ksen
Yeah, the church - the body of believers - ie. HIS followers who are born again, baptized in the Holy Spirit and Doing what HE tells them to do. His Church. Not an organizational hierarchy.