Book of Jubilees 23:19
And they shall strive one with another, the young with the old, and the old with the young, the poor with the rich, the lowly with the great, and the beggar with the prince, on account of the law and the covenant; for they have forgotten commandment, and covenant, and feasts, and months, and Sabbaths, and jubilees, and all judgments.
Background and history of Book of Jubilees, and issues with this book.
R. H. Charles, The Book of Jubilees, in The Apocrypha and Pseudepigrapha of the Old Testament, vol. 2 (Oxford: Clarendon Press, 1913). Public domain in the United States (published 1913). Charles died in 1931, so the book is in the public domain in the United Kingdom. The verse text is the Joshua Williams transcription at pseudepigrapha.com. Jubilees 1:8 and 1:9 are divided at the break in the 1902 Clarendon scan (archive.org bookofjubileesor00char), where verse 9 begins “For they will forget.” That scan also numbers the angel-of-the-presence sentence as 1:29. Editorial brackets in the translation are Charles’s.