Looking at various translations of the Koran including
The Study Quran with S.H. Nasr as chief editor I'm finding that most of them have a decidedly King Jamesian cadence. That was the hieratic language that seemed to the editors to fit and perhaps also may have been an influence on the original as delivered by Gabriel who in this case is like your brother-in-law relating the plot of a movie. Thomas Cleary has a poetic version . A reviewer noted:
It is common knowledge among many Muslims that the Quran cannot be translated into any language other than Arabic for then the original intended meaning of the verses may be lost
This is indisputable most of the time and otherwise quite certainly true.
