7 Now when David heard of it, he sent Joab and all the army of the mighty men. 8 Then the people of Ammon came out and put themselves in battle array at the entrance of the gate. And the Syrians of Zoba, Beth Rehob, Ish-Tob, and Maacah were by themselves in the field. 9 When Joab saw that the battle line was against him before and behind, he chose some of Israel's best and put them in battle array against the Syrians. 10 And the rest of the people he put under the command of Abishai his brother, that he might set them in battle array against the people of Ammon. 11 Then he said, "If the Syrians are too strong for me, then you shall help me; but if the people of Ammon are too strong for you, then I will come and help you. 12 Be of good courage, and let us be strong for our people and for the cities of our God. And may the Lord do what is good in His sight." 13 So Joab and the people who were with him drew near for the battle against the Syrians, and they fled before him. 14 When the people of Ammon saw that the Syrians were fleeing, they also fled before Abishai, and entered the city. So Joab returned from the people of Ammon and went to Jerusalem.
15 When the Syrians saw that they had been defeated by Israel, they gathered together. 16 Then Hadadezer sent and brought out the Syrians who were beyond the River, and they came to Helam. And Shobach the commander of Hadadezer's army went before them. 17 When it was told David, he gathered all Israel, crossed over the Jordan, and came to Helam. And the Syrians set themselves in battle array against David and fought with him. 18 Then the Syrians fled before Israel; and David killed seven hundred charioteers and forty thousand horsemen of the Syrians, and struck Shobach the commander of their army, who died there. 19 And when all the kings who were servants to Hadadezer saw that they were defeated by Israel, they made peace with Israel and served them. So the Syrians were afraid to help the people of Ammon anymore.
Matthew Henry's Commentary on 2 Samuel 10:7-19
Commentary on 2 Samuel 10:6-14
(Read 2 Samuel 10:6-14)
They that are at war with the Son of David, not only give the provocation, but begin the war. God has forces to send against those that set his wrath at defiance, Isaiah 5:19, which will convince them that none ever hardened his heart against God, and prospered. Christ's soldiers should strengthen one another's hands in their spiritual warfare. Let nothing be wanting in us, whatever the success be. When we make conscience of doing our duty, we may, with satisfaction, leave the event with God, assuredly hoping for his salvation in his own way and time.
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.