Charles H. Spurgeon on Psalms 59:10

The God of my mercy shall prevent me. God who is the giver and fountain of all the undeserved goodness I have received, will go before me and lead my way as I march onward. He will meet me in my time of need. Not alone shall I have to confront my foes, but he whose goodness I have long tried and proved will gently clear my way, and be my faithful protector. How frequently have we met with preventing mercy —the supply prepared before the need occurred, the refuge built before the danger arose. Far ahead into the future the foreseeing grace of heaven has projected itself, and forestalled every difficulty. God shall let me see my desire upon mine enemies. Observe that the words, my desire, are not in the original. From the Hebrew we are taught that David expected to see his enemies without fear. God will enable his servant to gaze steadily upon the foe without trepidation; he shall be calm, and self possessed, in the hour of peril; and ere long he shall look down on the same foes discomfited, overthrown, destroyed. When Jehovah leads the way victory follows at his heels. See God, and you need not fear to see your enemies. Thus the hunted David, besieged in his own house by traitors, looks only to God, and exults over his enemies.