2 Chronicles 25:11-13

11And Amaziah took courage, and led forth his people, and went to the Valley of Salt, and smote of the children of Seir ten thousand. 12And other ten thousand did the children of Judah carry away alive, and brought them unto the top of the rock, and cast them down from the top of the rock, so that they were all broken in pieces. 13But the men of the army whom Amaziah sent back, that they should not go with him to battle, fell upon the cities of Judah, from Samaria even unto Beth-horon, and smote of them three thousand, and took much spoil.