Josh McDowell answers.

I (Josh) set out as a young man to refute Christianity. I aimed to show everyone that Christianity was nonsense. I thought it would be easy. It wasn’t. In fact, I discovered that the Bible is far and away the most meticulously preserved and widely attested documents of the ancient world. No other book even comes close (we go into greater detail on this subject in our book, Don’t Check Your Brains at the Door). This reliability was confirmed by the 1948 discovery of the Dead Sea Scrolls, which showed that after a thousand years of copying, the text as it appears in modern Bibles was more than ninety-five percent the same, word-for-word and letter-for-letter, as it had been three thousand years earlier! And what differences did exist were mainly spelling variations.