Charles Ellicott Commentary 2 Kings 13:17

"And he said, Open the window eastward; and he opened it. Then Elisha said, Shoot; and he shot. And he said, Jehovah`s arrow of victory, even the arrow of victory over Syria; for thou shalt smite the Syrians in Aphek, till thou have consumed them." — 2 Kings 13:17 (ASV)

And he said —that is, Elisha said.

The arrow of the Lord’s ... Syria. —Literally, An arrow of victory for Jehovah, and an arrow of victory over Aram!

In Aphek. —Joshua 13:4; 1 Kings 20:26. The scene of former defeats was to become that of triumph.

Till you have consumed them. —Literally, to finishing. The annihilation of the opposing army at Aphek, not of the entire forces of Syria, is predicted. (See 2 Kings 13:19.)