The way we have our Bible (as we know it) verses other writings.
“In comparison with the remaining manuscripts of any other Ancient Greek or Latin literature, the New Testament suffers from an embarrassment of riches. It is almost incomprehensible to think about the disparity. When it comes to quantity of copies, the New Testament has no peer. More than 5,700 Greek New Testament manuscripts are still in existence, ranging in date from the early second century to the sixteenth century. To be sure, the earliest ones (i.e., through the 3rd century) are all fragmentary, but they cover a substantial amount of the New Testament. Greek manuscripts do not tell the whole story. The NT was translated early on into a variety of languages, including Latin, Coptic, Syriac, Armenian, Georgian, Gothic, and Arabic. All told, there are between 20,000 and 25,000 handwritten copies of the NT in various languages. Yet if all of these were destroyed, the NT text coul be reproduced almost in its entirety of quotations of it in sermons, tracts, and commentaries written by ancient teachers of the church (known as church fathers or Patristic writers). To date, over a million quotations from the NT by the church fathers have been cataloged.
How does this compare with the average classical author? The copies of the average Ancient Greek or Latin author’s writings number fewer than 20 manuscripts! Thus, the NT has well over 1,000 times as many manuscripts as the works of the average classical author.” (ESV Study Bible)