16 they were joined by additional Aramean troops summoned by Hadadezer from the other side of the Euphrates River. These troops arrived at Helam under the command of Shobach, the commander of Hadadezer's forces.

Matthew Henry's Commentary on 2 Samuel 10:16

Commentary on 2 Samuel 10:15-19

(Read 2 Samuel 10:15-19)

Here is a new attempt of the Syrians. Even the baffled cause will make head as long as there is any life in it; the enemies of the Son of David do so. But now the promise made to Abraham, Joshua 1:4, that the borders of Israel should extend to the river Euphrates, was performed. Learn hence, that it is dangerous to help those who have God against them; for when they fall, their helpers will fall with them.