C. F. Keil and Franz Delitzsch on 2 Kings 5:2-3

2Ki 5:2-3

And in Naaman’s house before his wife, i.e., in her service, there was an Israelitish maiden, whom the Syrians had carried off in a marauding expedition (גדוּדים יצאוּ: they had gone out in (as) marauding bands). She said to her mistress: “O that my lord were before the prophet at Samaria! (where Elisha had a house, 2Ki 6:32), he would free him from his leprosy.” מצּרעת אסף, to receive (again) from leprosy, in the sense of “to heal,” may be explained from Num 12:14-15, where אסף is applied to the reception of Miriam into the camp again, from which she had been excluded on account of her leprosy.