We now continue consider the dating of the New Testament.
Note that Irenaeus (120-202 AD) wrote the following in Against Heresies III.11.7,
So firm is the ground upon which these Gospels rest, that the very heretics themselves bear witness to them, and, starting from these (documents) each one of them endeavors to establish his own particular doctrine.
Irenaeus also declared the following of Matthew, Mark, Luke and John in Against Heresies III.11.8,
As for the New Testament; we have more manuscripts and earlier manuscripts which have been more accurately copied than any other book from antiquity. We have circa 5,700 Greek manuscripts which total circa 24,000 when we include other languages such as Latin, Ethiopic, Slavic, Armenian, Syriac Pashetta, Bohairic, Arabic, Old Latin, Anglo Saxon, Gothic, Sogdian, Old Syriac, Persian and Frankish.