What does 2 Kings 8:21 mean?

Then Joram passed over to Zair, and all his chariots with him: and he rose up by night, and smote the Edomites that compassed him about, and the captains of the chariots; and the people fled to their tents.

So Joram went over to Zair, and all the chariots with him: and he rose by night, and smote the Edomites which compassed him about, and the captains of the chariots: and the people fled into their tents.

Then Joram passed over to Zair, and all his chariots with him: and he rose up by night, and smote the Edomites that compassed him about, and the captains of the chariots; and the people fled to their tents.

Then Joram went over to Zair, with all his war-carriages; ... made an attack by night on the Edomites, whose forces were all round him, ... the captains of the war-carriages; and the people went in flight to their tents.

and Joram passeth over to Zair, and all the chariots with him, and he himself hath risen by night, and smiteth Edom, that is coming round about unto him, and the heads of the chariots, and the people fleeth to its tents;

And Joram came to Seira, and all the chariots with him: and he arose in the night, and defeated the Edomites that had surrounded him, and the captains of the chariots, but the people fled into their tents.

And Joram went over to Zair, and all the chariots with him; and he rose up by night, and smote the Edomites who had surrounded him, and the captains of the chariots; and the people fled into their tents.