The Authorized Version is not, of course, a purely seventeenth century work.

Though the scholars[3] who wrote and compiled it had before them all the previous vernacular texts and chose the best readings where they found them or devised new ones in accordance with the original, the basis is undoubtedly the Tudor version of Tindall.

It has, none the less, the qualities of the time of its publication.

It could hardly have been done earlier; had it been so, it would not have been done half so well.

In it English has lost both its roughness and its affectation and retained its strength; the Bible is the supreme example of early English prose style.
The reason is not far to seek.