Later at spring, as a prophet prophesied to Ahab, Ben-Hadad came again, with all his army. They came to the valleys, declaring triumphantly that God was a "gods of hills" and that was why the Israelites were strong; and now that they were in the valleys, they would surely win the battle. But God wanted to prove that he was the God of everything and not only of the hills, so he helped Ahab defeat them there, too. Ahab then spared Ben-Hadad's life. This caused God to get angry at Ahab and say through a prophet (1 Kings 20:42)--"This is what the Lord says: 'You have set free a man that I had determined should die. Therefore it is your life for his life, your people for his people.'" 