Michael Kruger’s second post in his series Ten Basic Facts about the NT Canon that Every Christian Should Memorize proceeds from the first, which was that the New Testament documents are the earliest Christian writings which we possess, by pointing out that the other apocryphal documents which claim (or which have others claim on their behalf) that they have equal status with the NT writings all date from the second century or later.

In this current post, we address the issue of “apocryphal” New Testament writings. These are writings that were not included in the New Testament, but have a similar genre (gospels, acts, letters, apocalypses, etc.). And these writings are often attributed to famous individuals; e.g., the Gospel of Peter, the Gospel of Thomas, the Acts of John.
While we cannot go into extensive detail about these various apocryphal writings, we can at least note one basic fact that is often overlooked: all of these apocryphal writings are dated to the second century or later. Thus, this post is the corollary of the prior one. Not only are all New Testament writings from the first century, but all apocryphal writings (at least the ones that are extant) are from the second century or later. And many are from the third or fourth century.
What is particularly noteworthy about this fact is that even critical scholars agree. While there is dispute over the dating of some New Testament books (e.g., 2 Peter, the Pastoral Epistles), there is virtual unanimity over the late date of apocryphal books.
Read the whole post at canon fodder.