It is from the Dead Sea Scrolls, and it is about Michael who lives in the last days. The three books is the "laws," "prophets," and "mysteries." The books of mysteries would for example be other writings, such as Paul's writings; or also, The Dead Sea Scrolls. Historical writings often have mysteries and would not always be another class of books. The person being spoken of in 4Q534 is Michael. That is all I have to say about the matter. Bye.
I do not believe what you are saying and I do not follow you. Sorry, but what you have posted here is confusing meaning it is not clear and straightforward Biblical teaching. I don't see any agreement with the Bible. The Bible is the word of God. Scripture, all scripture, is inspired by God... God-Breathed.
I believe you are explaining your view on the Dead Sea Scrolls.