The fear of the Lord is the start of wisdom

1 Kings 20:22-30
Afterward, the prophet came to the king of Israel and said, "strengthen your position and see what must be done, because net spring the king of ram will attack you again.
The man of God came up and told the king of Israel, "This is what the Lord says: 'Because the Arameans think the Lord is a god of the hills and not a god of the valleys, I will deliver this vast army into your hands, and you will know that I am the Lord."
Benhadad has to eat his words in face of Israel's double victory. Abab spares his life, but in doing so stores up trouble for Israel. He has made the same mistake as Saul: In a 'holy war' everything is made over to God in sacrifice. This war was meant to demonstrate that hills and plains alike are under God's dominion.
Why?
Arameans is powerful and stronger than Israelite, but the Lord is with Israel, so Ahab made victory over Benhadad, this is the holy war. The hills and plains alike are under God's dominion. God like to let Ahab, Israelite know that the Lord is God!
Benhadad failed for had not knowledge to the Lord almighty.
How?
My god is the great god, nothing is impossible to Him. Trust in the Lord and obey his commands, all the victory belong to the Lord. The fear of the Lord is the start of wisdom.