Synoptic Gospels synoptic gospels are similar to John: all are composed in Koine Greek, have a similar length, and were completed within a century of Jesus' death. They also differ from non-canonical sources, such as the Gospel of Thomas, in that they belong to the ancient genre of biography, collecting not only Jesus' teachings, but recounting in an orderly way his origins, his ministry and miracles, and his passion and resurrection. In content and in wording, though, the synoptics diverge widely from John but have a great deal in common with each other. Though each gospel includes some unique material, the majority
New Testament by saying "The more often you have copies that agree with each other, especially if they emerge from different geographical areas, the more you can cross-check them to figure out what the original document was like. The only way they'd agree would be where they went back genealogically in a family tree that represents the descent of the manuscripts. In attempting to determine the original text of the New Testament books, some modern textual critics have identified sections as additions of material, centuries after the gospel was written. These are called interpolations. In modern translations of the Bible, the results