Pseudepigrapha books

Pseudepigrapha are spurious works ostensibly written by a biblical figure.
Deuterocanonical works are those that are accepted in one canon but not in all.

Old Testament Pseudepigrapha are extremely numerous and offer accounts of patriarchs
and events, attributed to various biblical personages from Adam to Zechariah.
Some of the most significant of these works are the Ascension of Isaiah, the Assumption
of Moses, the Life of Adam and Eve, the First and Second Books of Enoch, the Book
of Jubilees, the Letter of Aristeas, and the Testaments of the Twelve Patriarchs.

All the New Testament apocrypha are Pseudepigraphal, and most of them fall
into the categories of acts, gospels, and epistles, though there are a number
of apocalypses and some can be characterized as wisdom books. The apocryphal acts
purport to relate the lives or careers of various biblical figures, including
most of the apostles; the epistles, gospels, and others are ascribed to such figures.
Some relate encounters and events in mystical language and describe arcane rituals.
Most of these works arose from sects that had been or would be declared heretical,
such as, importantly, the Gnostics. Some of them argued against various heresies,
and a few appear to have been neutral efforts to popularize the life of some saint
or other early leader of the church, including a number of women. In the early
decades of Christianity no orthodoxy had been established, and various parties
or factions were vying for ascendancy and regularity in the young church. All
sought through their writings, as through their preaching and missions, to win
believers. In this setting virtually all works advocating beliefs that later became
heretical were destined to denunciation and destruction.