I've been meaning all week to comment that over last weekend I saw a syndicated newspaper article that was attempting to debunk the influence of the King James Bible on the English language. This is all from memory, so apologies in advance for any inaccuracies, if anyone digs up the actual article.
Anyway, the author claimed to have found only a small number of phrases--somewhere in the twenties, I think, or maybe even fewer--that he said were unique to the King James Version of the Bible that had become common usage. By "unique," the author meant that the phrases had not appeared in earlier English translations.
Well. ...
OK, but the problem I have with that is that the KJV New Testament is overwhelmingly the New Testament as translated by William Tyndale in the first third of the sixteenth century (put another way, in the time of Henry VIII), so of course most of the New Testament is not going to be "unique"--that is, it didn't appear in a previous English translation.
But I also think counting up phrases and quotations kind of misses the point. Yes, the Bible did give us some words and phrases, but to me it seems the more important influence was in the way the language was used. More English-speaking people were exposed to the language of the KJV than to Shakespeare or the Book of Common Prayer (two other big influences).
Think of Jefferson's use of language in the Declaration of Independence, and especially think of Lincoln's usage in his speeches and writings. Nothing would have prevented Lincoln from beginning the Gettysburg Address with a simple and straight-forward "Eighty-seven years ago." But no. Lincoln went with "Fourscore and seven years ago." The rhythm and the cadence are those of the KJV. The line does not quote Psalm 90:10, "The days of our years are threescore years and ten," but it echoes it, and it was probably even intended to form a connection in the minds of people who were much more Biblically literate than a lot of people are today.
When people learned to read from the KJV, when poorer and/or isolated homes didn't own any other books besides the KJV, it's difficult to escape the conclusion that the KJV had a significant influence on the way people wrote and used the English language.