II Chronicles 25:5-13

Moreover Amaziah gathered Judah together and set over them captains of thousands and captains of hundreds, according to their fathers’ houses, throughout all Judah and Benjamin; and he numbered them from twenty years old and above, and found them to be three hundred thousand choice men, able to go to war, who could handle spear and shield. He also hired one hundred thousand mighty men of valor from Israel for one hundred talents of silver. But a man of God came to him, saying, “O king, do not let the army of Israel go with you, for the LORD is not with Israel—not with any of the children of Ephraim. But if you go, be gone! Be strong in battle! Even so, God shall make you fall before the enemy; for God has power to help and to overthrow.” Then Amaziah said to the man of God, “But what shall we do about the hundred talents which I have given to the troops of Israel?” And the man of God answered, “The LORD is able to give you much more than this.” So Amaziah discharged the troops that had come to him from Ephraim, to go back home. Therefore their anger was greatly aroused against Judah, and they returned home in great anger. Then Amaziah strengthened himself, and leading his people, he went to the Valley of Salt and killed ten thousand of the people of Seir. Also the children of Judah took captive ten thousand alive, brought them to the top of the rock, and cast them down from the top of the rock, so that they all were dashed in pieces. But as for the soldiers of the army which Amaziah had discharged, so that they would not go with him to battle, they raided the cities of Judah from Samaria to Beth Horon, killed three thousand in them, and took much spoil.