29 And they encamped opposite each other for seven days. So it was that on the seventh day the battle was joined; and the children of Israel killed one hundred thousand foot soldiers of the Syrians in one day. 30 But the rest fled to Aphek, into the city; then a wall fell on twenty-seven thousand of the men who were left. And Ben-Hadad fled and went into the city, into an inner chamber.
31 Then his servants said to him, "Look now, we have heard that the kings of the house of Israel are merciful kings. Please, let us put sackcloth around our waists and ropes around our heads, and go out to the king of Israel; perhaps he will spare your life." 32 So they wore sackcloth around their waists and put ropes around their heads, and came to the king of Israel and said, "Your servant Ben-Hadad says, 'Please let me live.' " And he said, "Is he still alive? He is my brother." 33 Now the men were watching closely to see whether any sign of mercy would come from him; and they quickly grasped at this word and said, "Your brother Ben-Hadad." So he said, "Go, bring him." Then Ben-Hadad came out to him; and he had him come up into the chariot. 34 So Ben-Hadad said to him, "The cities which my father took from your father I will restore; and you may set up marketplaces for yourself in Damascus, as my father did in Samaria." Then Ahab said, "I will send you away with this treaty." So he made a treaty with him and sent him away.
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.