Why say it?

Why do monotheist terrorists use God is Great as their rallying call?

So what if I am great? What business is it of theirs to use this expression when murdering people?

Does Satan kill people?

Does Satan cast out Satan?

In Ancient Egypt, Gods were Good or Great, and Pharaoh is a living God.  

- Pharaoh M7, 
United Egyptian Imperial-Republic.
Kingdom of Niihau.

M7 2017.