2 Esdras is in the appendix of the Russian canon, but is not considered to be inspired.
Why is it not canonical? Because:
- It is written by a Jew, re-contextualizing the fall of the Second Temple as an apocalyptic prophecy of Ezra. It just has a clumsy introduction written by Christians and an outro that might be written either by a Christian or another Jew.
- Theologically it is whack. It says the Messiah will reign for 300 years, die, then, after 7 days, the resurrection and last judgment happen. It also says that God does not care about those who will be condemned. In fact, throughout the text, Ezra keeps asking "but wait, dude, those guys are people, you know? Why are you considering them like they're absolutely worthless merely because they fell prey to sin?" and God, through Uriel, keeps telling him "stop worrying about them, they are truly worthless, you need to rejoice that you will most definitely be saved instead". Finally, the text's cosmology is that God made two worlds from the beginning - the former world in which we live in today, full of trials, and the latter world, which is perfect and will be revealed at the Last Judgment. God essentially put us all in the former world to weed out the saved from the condemned, and at the last judgment the condemned (who, I will note, were always predestined to be condemned to begin with) will be thrown in the trash and the saved will inherit the latter world.
To recap: we have a temporary Messianic kingdom, a God who does not love all that He has made, a prophet who alone receives a promise of salvation and is told to not care for "those other guys", and a world which was always fallen and basically exists purely to make us suffer to separate the good from the bad.
- It's not in any canon of the early Church that I know. Like Enoch, Jubilees, 4 Maccabees… it is an interesting text that both gives us context for the terminology and thoughts of the New Testament authors, and even elucidates some things, and as such had popularity among the Fathers. But it does not pass the expected norm of divine inspiration, both because of its very late authorship (it's older than some New Testament texts!) and because its theology is too difficult to reconcile with Holy Tradition. It simply doesn't fit what the local churches received from the apostles.
>>806479
It could be a reference to the Septuagint. In that way it would be a recognition that the Hellinistic communities which use the Septuagint instead of the traditional Hebraic canon have legitimacy but are secondary.
Scholars don't know of any sect that claims anything about 70 hidden books, so that's the hypothesis of some.