But I will send a fire into the house of Hazael, And it will devour the palaces of Ben Hadad.
Now the Edomites were descendants of Esau. Esau was the brother of Jacob, and thus God still looks at them as a brotherly relationship. The Edomites were really kin to, or brothers to, because Jacob and Esau were twin brothers. Yet the hatred that Esau had for Jacob never ceased in the descendants. The Edomites were the perennial enemies of Israel. Every opportunity they had, they attacked. Whenever Israel would be occupied with an enemy from the north, they'd always attack from the south. They sought to take advantage of every situation to destroy Israel. There was a hatred constantly simmering and kindling among the Edomites. The last recorded Edomite was, of course, the house of Herod, Herod the Great and his descendants. From then on the Edomites have been lost from history. Herod was an Idumean, an Edomite. So God promises the judgment.