Book of Jubilees 37:20
Hear these words which I declare unto thee, If the boar can change its skin and make its bristles as soft as wool, Or if it can cause horns to sprout forth on its head like the horns of a stag or of a sheep, Then will I observe the tie of brotherhood with thee And if the breasts separated themselves from their mother, for thou hast not been a brother to me.
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.