Psalms 51:5-14

Verse 5

Behold, I was shapen in iniquity - A genuine penitent will hide nothing of his state; he sees and bewails, not only the acts of sin which he has committed, but the disposition that led to those acts. He deplores, not only the transgression, but the carnal mind which is enmity against God. The light that shines into his soul shows him the very source whence transgression proceeds; he sees his fallen nature, as well as his sinful life; he asks pardon for his transgressions, and he asks washing and cleansing for his inward defilement. Notwithstanding all that Grotius and others have said to the contrary, I believe David to speak here of what is commonly called original sin; the propensity to evil which every man brings into the world with him, and which is the fruitful source whence all transgression proceeds. The word חוללתי cholalti, which we translate shaped, means more properly, I was brought forth from the womb; and יחמתני yechemathni rather signifies made me warm, alluding to the whole process of the formation of the fetus in utero, the formative heat which is necessary to develope the parts of all embryo animals; to incubate the ova in the female, after having been impregnated by the male; and to bring the whole into such a state of maturity and perfection as to render it capable of subsisting and growing up by aliment received from without. "As my parts were developed in the womb, the sinful principle diffused itself through the whole, so that body and mind grew up in a state of corruption and moral imperfection."
Verse 6

Behold, thou desirest truth - I am the very reverse of what I should be. Those desirest truth in the heart, but in me there is nothing but sin and falsity.

Thou shalt make one to know wisdom - Thou wilt teach me to restrain every inordinate propensity, and to act according to the dictates of sound wisdom, the rest of my life.
Verse 7

Purge me with hyssop - תחטאני techatteeni, "thou shalt make a sin-offering for me;" probably alluding to the cleansing of the leper: Lev 14:1, etc. The priest took two clean birds, cedar-wood, scarlet, and hyssop; one of the birds was killed; and the living bird, with the scarlet, cedar, and hyssop, dipped in the blood of the bird that had been killed, and then sprinkled over the person who had been infected. But it is worthy of remark that this ceremony was not performed till the plague of the leprosy had been healed in the leper; (Lev 14:3); and the ceremony above mentioned was for the purpose of declaring to the people that the man was healed, that he might be restored to his place in society, having been healed of a disease that the finger of God alone could remove. This David seems to have full in view; hence he requests the Lord to make the sin-offering for him, and to show to the people that he had accepted him, and cleansed him from his sin.
Verse 8

Make me to hear joy - Let me have a full testimony of my reconciliation to thee; that the soul, which is so deeply distressed by a sense of thy displeasure, may be healed by a sense of thy pardoning mercy.
Verse 9

Hide thy face from my sins - The sentiment here is nearly the same as that in Psa 51:3 : His sin was ever before his own face; and he knew that the eye of God was constantly upon him, and that his purity and justice must be highly incensed on the account. He therefore, with a just horror of his transgressions, begs God to turn away his face from them, and to blot them out, so that they may never more be seen. See the note on Psa 51:1 (note).
Verse 10

Create in me a clean heart - Mending will not avail; my heart is altogether corrupted; it must be new made, made as it was in the beginning. This is exactly the sentiment of St. Paul: Neither circumcision availeth any thing, nor uncircumcision, but a new creation; and the salvation given under the Gospel dispensation is called a being created anew in Christ Jesus.

A right spirit within me - רוח נכון ruach nachon, a constant, steady, determined spirit; called Psa 51:12, רוח נדיבה ruach nedibah, a noble spirit. a free, generous, princely spirit; cheerfully giving up itself to thee; no longer bound and degraded by the sinfulness of sin.
Verse 11

Cast me not away from thy presence - Banish me not from thy house and ordinances.

Take not thy Holy Spirit from me - I know I have sufficiently grieved it to justify its departure for ever, in consequence of which I should be consigned to the blackness of darkness, - either to utter despair, or to a hard heart and seared conscience; and so work iniquity with greediness, till I fell into the pit of perdition. While the Spirit stays, painfully convincing of sin, righteousness, and judgment, there is hope of salvation; when it departs, then the hope of redemption is gone. But while there his any godly sorrow, any feeling of regret for having sinned against God, any desire to seek mercy, then the case is not hopeless; for these things prove that the light of the Spirit is not withdrawn.
Verse 12

Restore unto me the joy of thy salvation - This is an awful prayer. And why? Because it shows he once Had the joy of God's salvation; and had Lost it by sin!

Uphold me with thy free spirit - Prop me up; support me with a princely spirit, one that will not stoop to a mean or base act. See on Psa 51:10 (note).
Verse 13

Then will I teach transgressors - I will show myself to be grateful; I will testify of thy loving-kindness; I will call on transgressors to consider the error of their ways; and shall set before them so forcibly thy justice and mercy, that sinners shall be converted unto thee. With a little change I can adopt the language of Dr. Delaney on this place: "Who can confide in his own strength, when he sees David fall? Who can despair of Divine mercy when he sees him forgiven? Sad triumph of sin over all that is great or excellent in man! Glorious triumph of grace over all that is shameful and dreadful in sin!"
Verse 14

Deliver me from blood-guiltiness - This is one of the expressions that gives most color to the propriety of the title affixed to this Psalm. Here he may have in view the death of Uriah, and consider that his blood cries for vengeance against him; and nothing but the mere mercy of God can wipe this blood from his conscience. The prayer here is earnest and energetic: O God! thou God of my salvation! deliver me! The Chaldee reads, "Deliver me (מדין קטול middin ketol) from the judgment of slaughter."

My tongue shall sing aloud - My tongue shall praise thy righteousness. I shall testify to all that thou hast the highest displeasure against sin, and wilt excuse it in no person; and that so merciful art thou, that if a sinner turn to thee with a deeply penitent and broken heart, thou wilt forgive his iniquities. None, from my case, can ever presume; none, from my case, need ever despair.
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