Psalms 60:9

The third strophe reverts to prayer; but the prayer now breathes more freely with a self-conscious courage for the strife. The fortified city (עיר מצור) is not Rabbath Ammon; but, as becomes evident from the parallel member of the verse and Kg2 14:7, the Idumaean chief city of Sela' (סלע) or Petra (vid., Knobel on Gen 36:42, cf. Psa 31:22; Ch2 8:5; Ch2 11:5 together with Psa 14:5). The wish: who will conduct me = Oh that one would conduct me (Ges. 136, 1)! expresses a martial desire, joyful at the prospect of victory; concerning מי נחני, quis perduxerit me, vid., on Psa 11:3. What follows is not now to be rendered: Not Thou (who but Thou), Elohim, who...(Hitzig) - for in order to have been understood thus and not as in Psa 60:3, Psa 44:10, the poet could not have omitted אשׁר - on the contrary, the interrogatory הלא is the foundation on which the supplicatory הבה is raised. The king of Israel is hard pressed in the battle, but he knows that victory comes from above, from the God who has hitherto in anger refused it to His people, inasmuch as He has given power to Edom to break through the defensive forces of Israel (vid., Psa 44:10). עזרת (not עזרת = עזרה) is, as in Psa 108:13, equivalent to עזרתה. The view that it is equal to עזרתי, the suffix being cast away, is not confirmed in this instance, vid., on Psa 16:6, cf. Psa 3:3. How vain is human succour, has been seen only very recently in the case of the kings of Zobah and Ammon, who have succumbed in spite of their confederates. Israel prays for its victorious power from above, and also obtains it thence, as is most confidently expressed in v. 14. עשׂה חיל, to do valiantly, to show valour, is equivalent to: to be victorious, as in Psa 118:16. In God does Israel conquer, and God, who is in Israel, will by means of Israe…

After many psalms which David penned in a day of distress this comes which was calculated for a day of triumph; it was penned after he was settled in the throne, upon occasion of an illustrious victory which God blessed his forces with over the Syrians and Edomites; it was when David was in the zenith of his prosperity, and the affairs of his kingdom seem to have been in a better posture then ever they were either before or after. See Sa2 8:3, Sa2 8:13; Ch1 18:3, Ch1 18:12. David, in prosperity, was as devout as David in adversity. In this psalm, I. He reflects upon the bad state of the public interests, for many years, in which God had been contending with them (Psa 60:1-3). II. He takes notice of the happy turn lately given to their affairs (Psa 60:4). III. He prays for the deliverance of God's Israel from their enemies (Psa 60:5). IV. He triumphs in hope of their victories over their enemies, and begs of God to carry them on and complete them (Psa 60:6-12). In singing this psalm we may have an eye both to the acts of the church and to the state of our own souls, both which have their struggles. To the chief musician upon Shushan-eduth, Michtam of David, to teach, when he strove with Aram-naharaim, and with Aramzobah, when Joab returned, and smote of Edom in the valley of salt 12,000.

60:9 Destroying a defeated invader’s capital (the fortified city) would help to ensure that they would not attack again. The capital of Edom was Bozrah, located to the southeast of Israel. Only God could grant victory.