2 Chronicles 25:11-12

Amaziah fights men from Seir

11 But Amaziah became brave and he led all his soldiers to the Valley of Salt. There they fought and they killed 10,000 men from Seir. 12 His army also caught 10,000 more men alive. They took them to the top of a tall rock and they threw them from the top of the rock. So, all the men died when they hit the rocks below.

25:11Seir or Edom was South of the Dead Sea and to the east.