The Erbarme dich, mein Gott aria from J S Bach's St Matthew Passion sung by Julia Hamari (the lead violinist Otto Büchner& conductor Karl Richter):
Goes beyond mere greatness to a level which is transcendent.
The complete performance is:
https://www.youtube.com/watch?v=Xdl0m1v5el8
The aria is part 39 at 1.45.05 and has subtitles in English.