Reviving a long-dead discussion can lead to all manner of misunderstandings, but, since this particular one has for no evidently good reason beyond whim been dragged back out of the grave, I should just say that the "real" verses quoted long ago by Tam are some centuries old, and have not been part of the official anthem for the last couple of hundred years; objections based on that are therefore irrelevant unless somebody is really very desperate indeed to pick a fight on the smallest pretense.

National anthems are usually crap, and the British (not English) one is no exception, though it has been copied by rather a lot of other countries as it's an easy tune with a convenient shape (a galliard, if you're interested in dance forms). Give me Jerusalem any time for preference, if we're talking about England, though I'd prefer something a bit more secular and radical; and for Scotland (the term "Celtic" is also irrelevant here, as both countries are racially indistinguishable in the most part) Hamish Henderson's Freedom Come All Ye. Flower of Scotland, though well-intentioned and undeniably very popular, has always struck me as about as powerful, and musically interesting, as All Things Bright and Beautiful.