Albert Barnes Commentary 2 Kings 5:2

"And the Syrians had gone out in bands, and had brought away captive out of the land of Israel a little maiden; and she waited on Naaman`s wife." — 2 Kings 5:2 (ASV)

No peace had been made following the failure of Ahab’s expedition (1 Kings 22:1–36). The relationship between the two countries therefore remained hostile, and plundering raids naturally took place from both sides.