Chronological dating new testament
Both Matthew and Luke agree with each other, however, on content that is not in Mark. The first was written by John the apostle, likely with the assistance of an amanuensis, (A.
The understanding here is that there is another source, called Q by scholars, that both Matthew and Luke had. It is not expected that Matthew or Luke used each other because of the significant number of otherwise inexplicable omissions and conflicts between Matthew and Luke in how they use Mark and Q.
The authors must have clear links to the eyewitnesses (or be eyewitnesses) to reduce the possibility of communication mistakes.
We will learn that even in the most pessimistic, but rational, reading of the data, we come to the understanding that the authors of the New Testament are close enough to the events to be able to give an accurate picture of historical events.
There are exceptions to this, but those exceptions are uncommon. Because of the theme of this writing, he spent more time discussing sources than most writers of this era. Understanding the source of these similarities is referred to as the synoptic problem. For the most part, later sections will rely on the Gospels because this is where almost all the sayings and actions of Jesus are, and Acts, because it focuses on the early history of the church. __________  My sources for this section and its subsections are Donald Guthrie, New Testament Introduction, Raymond E. However, it is not as surprising when we realize that oral cultures contain the entire wisdom and history of their people in oral form, so much care is employed.
The church fathers did not have the current understanding of history and authorship. To determine New Testament authorship as best we can, we use the earliest of the patristic sources augmented by the internal evidence of the New Testament.
Much will be uncertain; but this we will know; and this is what we need in order to continue our investigation of scripture and Christian history.
Much of the information we have about the authors of the New Testament comes from the church fathers, the leaders of the church in the post-apostolic age.
It is likely that John was aware of the other Gospels, because his was the last written (see below).
However, he was more concerned about recording what the others did not write about than what they did.
A book being on the list is a fair indication that it was in widespread use, however. Similarly, Matthew and Luke often modify the order of events in Mark, but not in the same way.