1 Kings 20:28-30

Then the man of God went to the king of Israel and said, “This is what the LORD says: The Arameans have said, ‘The LORD is a god of the hills and not of the plains.’ So I will defeat this vast army for you. Then you will know that I am the LORD.” The two armies camped opposite each other for seven days, and on the seventh day the battle began. The Israelites killed 100,000 Aramean foot soldiers in one day. The rest fled into the town of Aphek, but the wall fell on them and killed another 27,000. Ben-hadad fled into the town and hid in a secret room.