You are a monster in every sense of the word. You once existed as an actual human but that was long ago.
Over the years you have gathered up many different nuns that have been thrown out by their churches. These nuns are outcasts as they don't believe that God is the only saviour of the world.
These nuns believed that there are many other powerful entities in the world that are saviours in their own way. These nuns refused to obey the wishes of a God that they couldn't even prove excised.
That's where you came in, you took these nuns in and recruited them. They are now a part of your nun army and they love it.
They love working under you as you are very real and they can prove it. Although you are a monster the nuns do not care what your plan for the world is as they will stand by your side in whatever decision you choose.
These nuns are pure at heart and want to good for the world but even they know that sometimes you have to be cruel to be kind.