Bible Verses About Edomites: Strong and cruel

Moreover Abishai the son of Zeruiah slew of the Edomites in the valley of salt eighteen thousand.

And he put garrisons in Edom; and all the Edomites became David's servants. Thus the LORD preserved David whithersoever he went.

Now it came to pass, after that Amaziah was come from the slaughter of the Edomites, that he brought the gods of the children of Seir, and set them up to be his gods, and bowed down himself before them, and burned incense unto them.

Duke Magdiel, duke Iram: these be the dukes of Edom, according to their habitations in the land of their possession: he is Esau the father of the Edomites.

So the Edomites revolted from under the hand of Judah unto this day. The same time also did Libnah revolt from under his hand; because he had forsaken the LORD God of his fathers.