Esau's sons reproach him for his subordination to Jacob, and constrain him to war with the assistance of 4,000 mercenaries against Jacob, 1-15. Jacob reproves Esau, 16-17. Esau's reply, 18-25.
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.