29 And they encamped opposite one another seven days. Then on the seventh day the battle was joined. And the people of Israel struck down of the Syrians 100,000 foot soldiers in one day. 30 And the rest fled into the city of Aphek, and the wall fell upon 27,000 men who were left. Ben-hadad also fled and entered an inner chamber in the city.
31 And his servants said to him, "Behold now, we have heard that the kings of the house of Israel are merciful kings. Let us put sackcloth around our waists and ropes on our heads and go out to the king of Israel. Perhaps he will spare your life." 32 So they tied sackcloth around their waists and put ropes on their heads and went to the king of Israel and said, "Your servant Ben-hadad says, 'Please, let me live.'" And he said, "Does he still live? He is my brother." 33 Now the men were watching for a sign, and they quickly took it up from him and said, "Yes, your brother Ben-hadad." Then he said, "Go and bring him." Then Ben-hadad came out to him, and he caused him to come up into the chariot. 34 And Ben-hadad said to him, "The cities that my father took from your father I will restore, and you may establish bazaars for yourself in Damascus, as my father did in Samaria." And Ahab said, "I will let you go on these terms." So he made a covenant with him and let him go.
Matthew Henry's Commentary on 1 Kings 20:29-34
Commentary on 1 Kings 20:22-30
(Read 1 Kings 20:22-30)
Those about Benhadad advised him to change his ground. They take it for granted that it was not Israel, but Israel's gods, that beat them; but they speak very ignorantly of Jehovah. They supposed that Israel had many gods, to whom they ascribed limited power within a certain district; thus vain were the Gentiles in their imaginations concerning God. The greatest wisdom in worldly concerns is often united with the most contemptible folly in the things of God.
Commentary on 1 Kings 20:31-43
(Read 1 Kings 20:31-43)
This encouragement sinners have to repent and humble themselves before God; Have we not heard, that the God of Israel is a merciful God? Have we not found him so? That is gospel repentance, which flows from an apprehension of the mercy of God, in Christ; there is forgiveness with him. What a change is here! The most haughty in prosperity often are most abject in adversity; an evil spirit will thus affect a man in both these conditions. There are those on whom, like Ahab, success is ill bestowed; they know not how to serve either God or their generation, or even their own true interests with their prosperity: Let favour be showed to the wicked, yet will he not learn righteousness. The prophet designed to reprove Ahab by a parable. If a good prophet were punished for sparing his friend and God's when God said, Smite, of much sorer punishment should a wicked king be thought worthy, who spared his enemy and God's, when God said, Smite. Ahab went to his house, heavy and displeased, not truly penitent, or seeking to undo what he had done amiss; every way out of humour, notwithstanding his victory. Alas! many that hear the glad tidings of Christ, are busy and there till the day of salvation is gone.