It is not right, Gil-Galad, but I am interested

I can imagine your explanations of most of the things, except: though darkess took us both (they were not both taken by darkness, I mean not both the same way), Bearer of fire he (which one and why?), while I bear twice our name (I am actually interested in how everyone takes this line in general), we stopped the men of fame (I am really confused here, at least in the case of the 3rd age MT), but wall is between us until the King's day comes (now this I'd like to see explained).
But as I said, it is wrong, so please others continue in guessing