This priest starts invoking Melkor, and during the ritual he wants to say things like "approach", "manifest", "reveal yourself". But the priest worships Melkor; he doesn't approach him the way he'd approach a lesser spirit, which he'd perhaps try to force/bind/constrain.

So the question is, in such a setting, in a setting where a god is worshipped, is the use of clipped Klingon appropriate? 

Could the priest of Melkor say to him {nargh}, {ghoS}, {'ang'egh}? Or would the use of clipped Klingon in an occasion like this be considered inappropriate/disrespectful?