Psalms 59:10

It is our wisdom and duty, in times of danger and difficulty, to wait upon God; for he is our defence, in whom we shall be safe. It is very comfortable to us, in prayer, to look to God as the God of our mercy, the Author of all good in us, and the Giver of all good to us. The wicked can never be satisfied, which is the greatest misery in a poor condition. A contented man, if he has not what he would have, yet he does not quarrel with Providence, nor fret within himself. It is not poverty, but discontent that makes a man unhappy. David would praise God because he had many times, and all along, found Him his refuge in the day of trouble. He that is all this to us, is certainly worthy of our best affections, praises, and services. The trials of his people will end in joy and praise. When the night of affliction is over, they will sing of the Lord's power and mercy in the morning. Let believers now, in assured faith and hope, praise Him for those mercies, for which they will rejoice and praise him for ever.

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.