Here is, 1. The court made to David by the king of Hamath, who, it seems was at this time at war with the king of Zobah. He hearing of David's success against his enemy, sent his own son ambassador to him (Sa2 8:9, Sa2 8:10), to congratulate him on his victory, to return him thanks for the favour he had done him in breaking the power of one he was in fear of, and to beg his friendship. Thus he not only secured but strengthened himself. And David lost nothing by taking this little prince under his protection, any more than the old Romans did by the like policy; for the wealth he had from the countries he conquered by way of spoil he had from this by way of present or gratuity: Vessels of silver and gold. Better get by composition than by compulsion. 2. The offering David made to God of the spoils of the nations and all the rich things that were brought him. He dedicated all to the Lord, Sa2 8:11, Sa2 8:12. This crowned all his victories, and made them far to out-shine Alexander's or Caesar's, that they sought their own glory, but he aimed at the glory of God. All the precious things he was master of were dedicated things, that is, they were designed for the building of the temple; and a good omen it was of kindness to the Gentiles in the fulness of time, and of the making of God's house a house of prayer for all people, that the temple was built of the spoils and presents of Gentile nations, in allusion to which we find the kings of the earth bringing their glory and honour into the new Jerusalem, Rev 21:24. Their gods of gold David burnt (Sa2 5:21), but their vessels of gold he dedicated. Thus in the conquest of a soul, by the grace of the Son of David, what stands in opposition to God must be destroyed, every lust mortified and crucified, but what may glorify him must be dedicated and the property of it altered. Even the merchandise and the hire must be holiness to the Lord (Isa 23:18), the gain consecrated to the Lord of the whole earth (Mic 4:13), and then it is truly our own and that most comfortably. 3. The reputation he got, in a particular manner, by his victory over the Syrians and their allies the Edomites, who acted in conjunction with them, as appears by comparing the title of the 60th Psalm, which was penned on this occasion, with Sa2 8:13. He got himself a name for all that conduct and courage which are the praise of a great and distinguished general. Something extraordinary, it is likely, there was in that action, which turned very much to his honour, yet he is careful to transfer the honour to God, as appears by the psalm he penned on this occasion, Sa2 8:12. It is through God that we do valiantly. 4. His success against the Edomites. They all became David's servants, Sa2 8:14. Now, and not till now, Isaac's blessing was accomplished, by which Jacob was made Esau's Lord (Gen 27:37-40) and the Edomites continued long tributary to the kings of Judah, as the Moabites were to the kings of Israel, till, in Joram's time, they revolted (Ch2 21:8) as Isaac had there foretold that Esau should, in process of time, break the yoke from off his neck. Thus David by his conquests, (1.) Secured peace to his son, that he might have time to build the temple. And, (2.) Procured wealth for his son, that he might have wherewith to build it. God employs his servants variously, some in one employment, others in another, some in the spiritual battles, others in the spiritual buildings; and one prepares work for the other, that God may have the glory of all. All David's victories were typical of the success of the gospel against the kingdom of Satan, in which the Son of David rode forth, conquering and to conquer, and he shall reign till he has brought down all opposing rule, principality, and power: and he has, as David had (Sa2 8:2), a line to kill and a line to save; for the same gospel is to some a savour of life unto life, to others a savour of death unto death.

He put garrisons in Edom - He repaired the strong cities which he had taken, and put garrisons in them to keep the country in awe.

And he put garrisons in Edom,.... To keep the inhabitants in subjection to him; as their forts and strong holds came into his hands, he placed companies of soldiers in them for the said purpose; or governors, as the Targum, men of his own nation, into whose hands he put their principal cities, who governed them for him, and under him. Jarchi interprets it of officers appointed to collect the tribute he exacted of them:

throughout all Edom put he garrisons; which is observed to show that the whole country was brought into subjection to him:

and all they of Edom became David's servants; and hereby were fulfilled the oracle delivered to Rebekah, and the prophetic blessing of Isaac, Gen 25:23,

and the Lord preserved David whithersoever he went; See Gill on Sa2 8:6.

David gat him a name when he returned from smiting of the Syrians--Instead of Syrians, the Septuagint version reads "Edomites," which is the true reading, as is evident from Sa2 8:14. This conquest, made by the army of David, was due to the skilful generalship and gallantry of Abishai and Joab. (Ch1 18:12; compare Psa 60:1, title.) The valley was the ravine of salt (the Ghor), adjoining the Salt Mountain, at the southwestern extremity of the Dead Sea, separating the ancient territories of Judah and Edom [ROBINSON].