Ben-hadad, king of Syria, gathers a great army with thirty-two kings and besieges Samaria. He sends messengers to Ahab demanding his silver, his gold, his wives and his children. Ahab agrees at first, but when Ben-hadad adds that his servants will search his house and take whatever they like, the elders of Israel advise him not to give in. Ahab replies that the one who puts on his armor should not boast like the one who takes it off.
A prophet announces to Ahab that the Lord will give the great army into his hand, so that he will know that he is the Lord. The young officers of the governors go out first, and Ben-hadad, who was drinking with the kings, orders them taken alive. Israel defeats the Syrians. The prophet warns Ahab to prepare, because Syria will return in the spring. The servants of Ben-hadad say that Israel's God is a god of the hills and will be beaten on the plain.
Syria assembles at Aphek, and a man of God announces that, because they said the Lord is a god of the hills and not of the valleys, the Lord will give Israel the victory. After seven days of camping face to face, Israel kills a hundred thousand foot soldiers in one day, and the wall of Aphek falls on twenty-seven thousand of those remaining. Ben-hadad hides, and his servants ask Ahab to spare him. Ahab calls him his brother, has him ride in his chariot and makes a treaty with him.
A prophet, by the word of the Lord, asks a companion to strike him, and when he refuses, a lion kills him. Another strikes him and the prophet covers his eyes with a bandage and waits for Ahab on the road. He tells a story of a soldier who let a prisoner he was guarding escape, and Ahab pronounces his own sentence. The prophet removes the bandage and declares that, for letting go the man the Lord had condemned, Ahab's life will answer for his. Ahab goes home sullen and angry.