“Let there be a treaty between me and you as there was between my father and your father. See, I have sent you silver and gold. Now go and break your treaty with Baasha king of Israel, so that he will withdraw from me.”
Asa asks Ben-hadad to renew an older treaty with Judah and break his agreement with Baasha so Israel will withdraw.
It states Asa's strategy in his own diplomatic appeal.
1In the thirty-sixth year of Asa’s reign, Baasha king of Israel went up against Judah and fortified Ramah to prevent anyone from leaving or entering the territory of Asa king of Judah. 2So Asa withdrew the silver and gold from the treasuries of the house of the LORD and the royal palace, and he sent it with this message to Ben-hadad king of Aram, who was ruling in Damascus: 3“Let there be a treaty between me and you as there was between my father and your father. See, I have sent you silver and gold. Now go and break your treaty with Baasha king of Israel, so that he will withdraw from me.” 4And Ben-hadad listened to King Asa and sent the commanders of his armies against the cities of Israel, conquering Ijon, Dan, Abel-maim, and all the store cities of Naphtali. 5When Baasha learned of this, he stopped fortifying Ramah and abandoned his work. 6Then King Asa brought all the men of Judah, and they carried away the stones of Ramah and the timbers Baasha had used for building. And with these materials he built up Geba and Mizpah.