The development of style as a writer should be driven by the simplest of goals: one should seek to write eloquently without sounding unnatural.
The definition of sounding unnatural, of course, is the problem. Personally, I find no writing by any writer famed for style in the entire canon of Modern English to sound unnatural. The King James Bible’s writing, though profoundly different from our current spoken English syntactically, lexicographically and morphologically, still sounds natural to me. There are no constructions that sound awkward in it, for awkwardness stems from using an idiom that one does not fully understand. No idiom, properly used, sounds unnatural. This is my defense of archaicism in English stylistics.