>>27586
Yes, I think you are right that 1 Enoch, chapter 48, or more specifically the Book of Parables chapters, was not in the collection at Qumran, as far as I can tell. However, the scholarly consensus is that 1 Enoch chapter 48 is from sometime around the 1st century BC. I am fairly certain that the oldest fragments we have of it are from the Ethiopian canon. I remember Fr. Stephen De Young mentioning how differences in the early canons were a result of the regional preferences of Israelites in different localities. So either it was written later, or maybe the Qumran community rejected the messianic tone of it