Albert Barnes Commentary 2 Kings 5:11

"But Naaman was wroth, and went away, and said, Behold, I thought, He will surely come out to me, and stand, and call on the name of Jehovah his God, and wave his hand over the place, and recover the leper." — 2 Kings 5:11 (ASV)

He will surely come out to me — In the East, a code of unwritten laws prescribes exactly how visits are to be paid and how visitors are to be received, according to the worldly rank of the parties (compare 2 Kings 5:21). No doubt, according to such a code, Elisha should have gone out to meet Naaman at the door of his house.

And call on the name of the LORD his God — The text literally says, “of Yahweh his God.” Naaman is aware that Yahweh is the God of Elisha. Compare this to the use of the name Yahweh on the Moabite Stone (see the note on 2 Kings 3:4).

Strike — A better translation, as noted in the margin, is to “pass the fingers up and down over the place” from a short distance. This seems to imply that the leprosy was partial.