what books would you add from historical books around the early church era.
Im not sure anything needs be added , but early Christian writings are often helpful and edifying so Long as they don’t part from the faith taught by Christ and the epistles we have
often it’s a matter of people determining if something is “ official “ which is why some books weren’t included some of the tests were withered and incomplete others were determined to be not “ official “ by the early Roman Catholic Church.
I would siggest reading the apocalypse of Paul 3 Corinthians’s , and peters apocalypse in study but not that they should be included in scripture the Bible contains for various reasons
mostly because we have grown up in those scriptures in the Bible and have a hearts trust in them as well as potential controversy among believers who think other letters such as Paul’s apocalypse aren’t genuine
I find that the content of many early writings non canon writings I mean can tell us whether they are genuine because they never part from scripture but only serve to further support the truth of scriptures message
Paul’s apocalypse is something that really makes sense given his other writings like this
“For the earnest expectation of
the creature waiteth for the manifestation of the sons of God. For the creature was made subject to vanity, not willingly, but by reason of him who hath subjected the same in hope, Because the creature itself also shall be delivered from the bondage of corruption into the glorious liberty of the children of God. For
we know that the whole creation groaneth and travaileth in pain together until now.”
Romans 8:19-22 KJV
then there’s this beautiful writing of the earth and heavens crying out as witnesses of mans sin and mans redemption on the apocalypse but it’s value should be weighed unevenly against scriptire as a matter of faith