Psalms 51:1

David, being convinced of his sin, poured out his soul to God in prayer for mercy and grace. Whither should backsliding children return, but to the Lord their God, who alone can heal them? he drew up, by Divine teaching, an account of the workings of his heart toward God. Those that truly repent of their sins, will not be ashamed to own their repentance. Also, he instructs others what to do, and what to say. David had not only done much, but suffered much in the cause of God; yet he flees to God's infinite mercy, and depends upon that alone for pardon and peace. He begs the pardon of sin. The blood of Christ, sprinkled upon the conscience, blots out the transgression, and, having reconciled us to God, reconciles us to ourselves. The believer longs to have the whole debt of his sins blotted out, and every stain cleansed; he would be thoroughly washed from all his sins; but the hypocrite always has some secret reserve, and would have some favorite lust spared. David had such a deep sense of his sin, that he was continually thinking of it, with sorrow and shame. His sin was committed against God, whose truth we deny by wilful sin; with him we deal deceitfully. And the truly penitent will ever trace back the streams of actual sin to the fountain of original depravity. He confesses his original corruption. This is that foolishness which is bound in the heart of a child, that proneness to evil, and that backwardness to good, which is the burden of the regenerate, and the ruin of the unregenerate. He is encouraged, in his repentance, to hope that God would graciously accept him. Thou desirest truth in the inward part; to this God looks, in a returning sinner. Where there is truth, God will give wisdom. Those who sincerely endeavour to do their duty shall be taught their duty; but they will expect good only from Divine grace overcoming their corrupt nature.

Have mercy upon me, O God. He appeals at once to the mercy of God, even before he mentions his sin. The sight of mercy is good for eyes that are sore with penitential weeping. Pardon of sin must ever be an act of pure mercy, and therefore to that attribute the awakened sinner flies. "According to thy lovingkindness." Act, O Lord, like thyself; give mercy like thy mercy. Show mercy such as is congruous with thy grace.

"Great God, thy nature hath no bound:

So let thy pardoning love be found."

What a choice word is that of our English version, a rare compound of precious things: love and kindness sweetly blended in one —"lovingkindness." According unto the multitude of thy tender mercies. Let thy most loving compassions come to me, and make thou thy pardons such as these would suggest. Reveal all thy gentlest attributes in my case, not only in their essence but in their abundance. Numberless have been thine acts of goodness, and vast is thy grace; let me be the object of thine infinite mercy, and repeat it all in me. Make my one case an epitome of all thy tender mercies. By every deed of grace to others I feel encouraged, and I pray thee let me add another and a yet greater one, in my own person, to the long list of thy compassions. Blot out my transgressions. My revolts, my excesses, are all recorded against me; but, Lord, erase the lines. Draw thy pen through the register. Obliterate the record, though now it seems engraven in the rock for ever; many strokes of thy mercy may be needed, to cut out the deep inscription, but then thou has a multitude of mercies, and therefore, I beseech thee, erase my sins.