Psalm 51:15

O Lord, open thou my lips; and my mouth shall shew forth thy praise.

EXPOSITORY (ENGLISH BIBLE)

Ellicott's Commentary for English Readers

(15) My lips.—Comp. Psalm 71:15. The sense of forgiveness is like a glad morning to song-birds.

Matthew Henry's Concise Commentary

51:7-15 Purge me with hyssop, with the blood of Christ applied to my soul by a lively faith, as the water of purification was sprinkled with a bunch of hyssop. The blood of Christ is called the blood of sprinkling, Heb 12:24. If this blood of Christ, which cleanses from all sin, cleanse us from our sin, then we shall be clean indeed, Heb 10:2. He asks not to be comforted, till he is first cleansed; if sin, the bitter root of sorrow, be taken away, he can pray in faith, Let me have a well-grounded peace, of thy creating, so that the bones broken by convictions may rejoice, may be comforted. Hide thy face from my sins; blot out all mine iniquities out of thy book; blot them out, as a cloud is blotted out and dispelled by the beams of the sun. And the believer desires renewal to holiness as much as the joy of salvation. David now saw, more than ever, what an unclean heart he had, and sadly laments it; but he sees it is not in his own power to amend it, and therefore begs God would create in him a clean heart. When the sinner feels this change is necessary, and reads the promise of God to that purpose, he begins to ask it. He knew he had by his sin grieved the Holy Spirit, and provoked him to withdraw. This he dreads more than anything. He prays that Divine comforts may be restored to him. When we give ourselves cause to doubt our interest in salvation, how can we expect the joy of it? This had made him weak; he prays, I am ready to fall, either into sin or into despair, therefore uphold me with thy Spirit. Thy Spirit is a free Spirit, a free Agent himself, working freely. And the more cheerful we are in our duty, the more constant we shall be to it. What is this but the liberty wherewith Christ makes his people free, which is contrasted with the yoke of bondage? Ga 5:1. It is the Spirit of adoption spoken to the heart. Those to whom God is the God of salvation, he will deliver from guilt; for the salvation he is the God of, is salvation from sin. We may therefore plead with him, Lord, thou art the God of my salvation, therefore deliver me from the dominion of sin. And when the lips are opened, what should they speak but the praises of God for his forgiving mercy?

Barnes' Notes on the Bible

O Lord, open thou my lips - That is, by taking away my guilt; by giving me evidence that my sins are forgiven; by taking this burden from me, and filling my heart with the joy of pardon. The original word is in the future tense, but the meaning is well expressed in our common translation. There was, in fact, at the same time a confident expectation that God "would" thus open his lips, and a desire that he should do it.

And my mouth shall show forth thy praise - Or, I will praise thee. Praise is the natural expression of the feelings when the sense of sin is removed.

Jamieson-Fausset-Brown Bible Commentary

15. open … lips—by removing my sense of guilt.

Matthew Poole's Commentary

Open thou my lips; which are shut with shame, and grief, and horror. Restore unto me the opportunity, and ability, and liberty which formerly I had of speaking to thee with freedom, and boldness, and familiarity, as this phrase signifies, Ezekiel 3:27 24:27 Ephesians 6:19,20.

Gill's Exposition of the Entire Bible

O Lord, open thou my lips,.... The Targum adds, "in the late"; which were shut with a sense of sin, with shame of it, and sorrow for it; and though they were in some measure opened in prayer to God for the forgiveness of it, as appears by various petitions in this psalm, yet he still wanted a free spirit and boldness at the throne of grace, which the believer has when his heart is sprinkled from an evil conscience by the blood of Christ; and especially his lips were shut as to praise and thanksgiving; the guilt of sin had sealed up his lips, that he could not sing the praises of God as he had formerly done; and only a discovery of pardoning grace could open them, and for this he prays:

and my mouth shall show forth thy praise: the praise of his mercy, grace, goodness, truth, and faithfulness, in psalms, hymns, and spiritual songs; see Psalm 103:1.

Geneva Study Bible

O Lord, {n} open thou my lips; and my mouth shall shew forth thy praise.

(n) By giving me opportunity to praise you, when you will forgive my sins.

EXEGETICAL (ORIGINAL LANGUAGES)

Cambridge Bible for Schools and Colleges

15. open thou] Lit. as P.B. V., thou shalt open, i.e. when thou openest. Not the occasion for praise only, but the power to praise aright is the gift of God. Cp. Psalm 40:3. In this verse and the preceding one there may be an allusion to the public worship of God. Cp. Psalm 26:6-7. He may be tacitly comparing himself to the leper who has been pronounced clean, and restored to that fellowship with the congregation from which he had been excluded.

Pulpit Commentary

Verse 15. - O Lord (not Jehovah, but Adonai), open thou my lips; and my mouth shall show forth thy praise. A sense of his guilt has long kept the psalmist's lips closed. Let his sins be forgiven, and his conscience relieved, then praise and thanksgiving will flow from his mouth freely and copiously. Psalm 51:15

Keil and Delitzsch Biblical Commentary on the Old Testament

The third part now begins with a doubly urgent prayer. The invocation of God by the name Elohim is here made more urgent by the addition of אלהי תשׁוּעתי; inasmuch as the prayers for justification and for renewing blend together in the "deliver me." David does not seek to lessen his guilt; he calls it in דּמים by its right name, - a word which signifies blood violently shed, and then also a deed of blood and blood-guiltiness (Psalm 9:13; Psalm 106:38, and frequently). We have also met with הצּיל construed with מן of the sin in Psalm 39:9. He had given Uriah over to death in order to possess himself of Bathsheba. And the accusation of his conscience spoke not merely of adultery, but also of murder. Nevertheless the consciousness of sin no longer smites him to the earth, Mercy has lifted him up; he prays only that she would complete her work in him, then shall his tongue exultingly praise (רנּן with an accusative of the object, as in Psalm 59:17) God's righteousness, which, in accordance with the promise, takes the sinner under its protection. But in order to perform what he vowed he would do under such circumstances, he likewise needs grace, and prays, therefore, for a joyous opening of his mouth. In sacrifices God delighteth not (Psalm 40:7, cf. Isaiah 1:11), otherwise he would bring some (ואתּנה, darem, sc. si velles, vid., on Psalm 40:6); whole-burnt-offerings God doth not desire: the sacrifices that are well-pleasing to Him and most beloved by Him, in comparison with which the flesh and the dead work of the עולות and the זבחים (שׁלמים) is altogether worthless, are thankfulness (Psalm 50:23) out of the fulness of a penitent and lowly heart. There is here, directly at least, no reference to the spiritual antitype of the sin-offering, which is never called זבה. The inward part of a man is said to be broken and crushed when his sinful nature is broken, his ungodly self slain, his impenetrable hardness softened, his haughty vainglorying brought low, - in fine, when he is in himself become as nothing, and when God is everything to him. Of such a spirit and heart, panting after grace or favour, consist the sacrifices that are truly worthy God's acceptance and well-pleasing to Him (cf. Isaiah 57:15, where such a spirit and such a heart are called God's earthly temple).

(Note: The Talmud finds a significance in the plural זבחי. Joshua ben Levi (B. Sanhedrin 43b) says: At the time when the temple was standing, whoever brought a burnt-offering received the reward of it, and whoever brought a meat-offering, the reward of it; but the lowly was accounted by the Scriptures as one who offered every kind of sacrifice at once (כאילו הקריב כל הקרבנות כולן). In Irenaeaus, iv. 17, 2, and Clemens Alexandrinus, Paedag. iii. 12, is found to θυσία τῷ Θεῷ καρδία συντετριμμένη the addition: ὀσμὴ εὐωδίας τῷ Θεῷ καρδία δοξάζουσα τὸν πεπλακότα αὐτήν.)