(9) Apparently we have now the very words of the prayer just mentioned.

Verse 9. - I will say unto God my Rock (comp. Psalm 18:1; Psalm 31:3). Why hast thou forgotten me? (see the comment on Psalm 13:1). God does not forget even when he most seems to forget (comp. Psalm 9:12; Psalm 37:28). As the event showed, he had not now forgotten David (see 2 Samuel 19:9-40). Why go I mourning because of the oppression of the enemy? Why am. I allowed to remain so long an exile, sorrowing and oppressed (comp. Psalm 43:2)? Even to repentant sinners God's judgments are apt to seem too severe, too much prolonged, too grievous.

42:6-11 The way to forget our miseries, is to remember the God of our mercies. David saw troubles coming from God's wrath, and that discouraged him. But if one trouble follow hard after another, if all seem to combine for our ruin, let us remember they are all appointed and overruled by the Lord. David regards the Divine favour as the fountain of all the good he looked for. In the Saviour's name let us hope and pray. One word from him will calm every storm, and turn midnight darkness into the light of noon, the bitterest complaints into joyful praises. Our believing expectation of mercy must quicken our prayers for it. At length, is faith came off conqueror, by encouraging him to trust in the name of the Lord, and to stay himself upon his God. He adds, And my God; this thought enabled him to triumph over all his griefs and fears. Let us never think that the God of our life, and the Rock of our salvation, has forgotten us, if we have made his mercy, truth, and power, our refuge. Thus the psalmist strove against his despondency: at last his faith and hope obtained the victory. Let us learn to check all unbelieving doubts and fears. Apply the promise first to ourselves, and then plead it to God.I will say unto God my rock,.... A name frequently given to the eternal God, Father, Son, and Spirit, Deuteronomy 32:4; See Gill on Psalm 18:2;

why hast thou forgotten me? See Gill on Psalm 13:1;

why go I mourning because of the oppression of the enemy? meaning perhaps Saul; though it may be applied to any spiritual enemy, sin, Satan, and the world; who are very oppressive and afflicting, and occasion continual mourning to the children of God.