22 Then the prophet came near to the king of Israel, and said to him, "Come, strengthen yourself, and consider well what you have to do; for in the spring the king of Syria will come up against you." 23 And the servants of the king of Syria said to him, "Their gods are gods of the hills, and so they were stronger than we; but let us fight against them in the plain, and surely we shall be stronger than they. 24 And do this: remove the kings, each from his post, and put commanders in their places; 25 and muster an army like the army that you have lost, horse for horse, and chariot for chariot; then we will fight against them in the plain, and surely we shall be stronger than they." And he hearkened to their voice, and did so. 26 In the spring Ben-ha'dad mustered the Syrians, and went up to Aphek, to fight against Israel. 27 And the people of Israel were mustered, and were provisioned, and went against them; the people of Israel encamped before them like two little flocks of goats, but the Syrians filled the country. 28 And a man of God came near and said to the king of Israel, "Thus says the Lord, 'Because the Syrians have said, "The Lord is a god of the hills but he is not a god of the valleys," therefore I will give all this great multitude into your hand, and you shall know that I am the Lord.'" 29 And they encamped opposite one another seven days. Then on the seventh day the battle was joined; and the people of Israel smote of the Syrians a hundred thousand foot soldiers in one day. 30 And the rest fled into the city of Aphek; and the wall fell upon twenty-seven thousand men that were left. Ben-ha'dad 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 on our loins and ropes upon our heads, and go out to the king of Israel; perhaps he will spare your life." 32 So they girded sackcloth on their loins, and put ropes on their heads, and went to the king of Israel and said, "Your servant Ben-ha'dad says, 'Pray, let me live.'" And he said, "Does he still live? He is my brother." 33 Now the men were watching for an omen, and they quickly took it up from him and said, "Yes, your brother Ben-ha'dad." Then he said, "Go and bring him." Then Ben-ha'dad came forth to him; and he caused him to come up into the chariot. 34 And Ben-ha'dad said to him, "The cities which my father took from your father I will restore; and you may establish bazaars for yourself in Damascus, as my father did in Sama'ria." 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 20:22-34

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.