1 Kings 20:29-33

So they camped, one opposite the other, for seven days. And on the seventh day the battle was joined, and the sons of Israel killed of the Arameans a hundred thousand foot soldiers in a single day.

But the rest fled to Aphek into the city, and the wall fell on twenty-seven thousand men who were left. And Ben-hadad fled and came into the city, going from one inner room to another.

But his servants said to him, “Behold now, we have heard that the kings of the house of Israel are merciful kings. Please let’s put sackcloth around our waists and ropes on our heads, and go out to the king of Israel; perhaps he will let you live.”

So they put sackcloth around their waists and ropes on their heads, and came to the king of Israel and said, “Your servant Ben-hadad says, ‘Please let me live.’ ” And Ahab said, “Is he still alive? He is my brother.”

Now the men took this as a good omen, and quickly accepting it from him, they said, “Your brother Ben-hadad.” Then he said, “Go, bring him.” Then Ben-hadad came out to him, and he had him mount the chariot.