Oh, Really?

I was just sitting here studying and preparing for the fourth visit from our LDS missionaries when I came upon this verse in the Book of Mormon. It is found at 2nd Nephi 31:3–

For my soul delighteth in plainness; for after this manner doth the Lord God work among the children of men. For the Lord God giveth light unto the understanding; for he speaketh unto men according to their language, unto their understanding.

Oh, really? Then why the King FREAKIN’ James language?