AMO 1:11

11 Yahweh [also] said this [to me]: “I will punish [the people of] Edom because of the many sins that they have committed; I will not change my mind about punishing them, because they pursued the people [of Israel], who descended from Esau’s [brother Jacob, and killed them] with swords; they did not act mercifully toward them at all. They were extremely angry [with the people of Israel], and they continued to be angry [with them].