And the children of Ammon seeing that the Syrians were fled, they fled also before Abisai, and entered into the city: and Joab returned from the children of Ammon, and came to Jerusalem.

and the Bene-Ammon have seen that Aram hath fled, and they flee from the presence of Abishai, and go in to the city; and Joab turneth back from the Bene-Ammon, and cometh in to Jerusalem.

And when the children of Ammon saw the flight of the Aramaeans, they themselves went in flight from Abishai, and came into the town. So Joab went back from fighting the children of Ammon and came to Jerusalem.

And when the children of Ammon saw that the Arameans were fled, they likewise fled before Abishai, and entered into the city. Then Joab returned from the children of Ammon, and came to Jerusalem.

Then, seeing that the Syrians had fled, the sons of Ammon themselves also fled from the face of Abishai, and they entered into the city. And Joab returned from the sons of Ammon, and he went to Jerusalem.

Joab returned - The great strength of Rabbah made it hopeless to take it by assault, and the Syrians were not sufficiently broken 2-Samuel 10:15 to make it safe to undertake a regular siege.

The Syrians were fled - They betook themselves to their own confines, while the Ammonites escaped into their own city.

And when the children of Ammon saw that the Syrians were fled,.... In whom they put great confidence:
then they fled also before Abishai; without engaging at all with him, as it seems:
and entered into the city; out of which they came, either Rabbah or Medeba, for their safety:
so Joab returned from the children of Ammon; did not stay to lay siege to their city, the season of the year not being proper for it, winter drawing near; see 2-Samuel 11:1,
and came to Jerusalem; in triumph, to report to David the victory he had obtained.

So Joab returned and came to Jerusalem--Probably the season was too far advanced for entering on a siege.