What the numbers show
No other ancient book comes close to the New Testament in the number of its manuscripts or their nearness to the time of writing. For most classical authors, scholars rely on a handful of medieval copies; for the New Testament they have thousands, some from the second and third centuries. Many are fragments or lectionaries (books of readings for worship), but the earliest papyri alone give a fuller and older record than survives for Tacitus or Caesar.
Lives compared
Alexander the Great died in 323 BC; the earliest surviving account of his campaigns, by Diodorus of Sicily, came nearly three centuries later, and the fullest, by Plutarch and Arrian, more than four. The Buddha’s teaching was passed on by memory for centuries before the Pali Canon was written down around the first century BC. For Jesus, Paul’s letters date within about twenty-five years of the crucifixion, the Gospels within forty to seventy, and Josephus, Tacitus, Pliny and Suetonius mention him or his followers within a century. No historian doubts that Alexander lived; the reader can weigh what an earlier and fuller record means for Jesus.
How textual criticism works
Textual criticism recovers the original wording of a text from its surviving copies. Scholars compare the manuscripts reading by reading, group them into families, give weight to the oldest and most careful, and ask which reading best explains the others. Because the New Testament witnesses are so many and so widespread, a mistake made in one place is usually exposed by copies from elsewhere. Modern critical editions print the result and list the main alternatives at the foot of each page.
What the variants are like
Hand copying produces differences, and across thousands of manuscripts they add up. Most are minor: spelling, word order, a dropped or repeated word, a synonym. A smaller number change the sense of a sentence. The few significant ones, such as the longer ending of Mark (16:9–20) and the woman caught in adultery (John 7:53–8:11), are well known and marked in modern Bibles with a note or brackets, in plain view for any reader to check.
Early translations
As the faith spread, the New Testament was translated: into Latin in the second and third centuries, before Jerome’s Vulgate (c. AD 382–405), and into Syriac and Coptic for the churches of Syria, Mesopotamia and Egypt from the third century. The translators worked from Greek manuscripts older than most that survive, so their versions show what the Greek read in their region and time.
The Fathers’ quotations
Early Christian writers quoted the New Testament constantly. Irenaeus (c. AD 180), Tertullian, Clement of Alexandria and Origen cite it so often that much of the text could be rebuilt from their works alone. Their quotations show which readings were known where and when, and confirm that the books were being read and copied across the Mediterranean well before the great fourth-century Bibles.