2 Chronicles 25:10-13

10Then Amaziah discharged the army that had come to him from Ephraim to go home again. And they became very angry with Judah and returned home in fierce anger. 11But Amaziah took courage and led out his people and went to the Valley of Salt and struck down 10,000 men of Seir. 12The men of Judah captured another 10,000 alive and took them to the top of a rock and threw them down from the top of the rock, and they were all dashed to pieces. 13But the men of the army whom Amaziah sent back, not letting them go with him to battle, raided the cities of Judah, from Samaria to Beth-horon, and struck down 3,000 people in them and took much spoil.