Create in me a clean heart, O God - The word rendered "create," ברא berâ' - is a word which is properly employed to denote an act of "creation;" that is, of causing something to exist where there was nothing before. It is the word which is used in Genesis 1:1 : "In the beginning God "created" the heaven and the earth," and which is commonly used to express the act of creation. It is used "here" evidently in the sense of causing that to exist which did not exist before; and there is clearly a recognition of the divine "power," or a feeling on the part of David that this could be done by God alone. The idea is, however, not that a new "substance" might be brought into being to which the name "a clean heart" might be given, but that he might "have" a clean heart; that his heart might be made pure; that his affections and feelings might be made right; that he might have what he was conscious that he did "not" now possess - a clean or a pure heart. This, he felt, could be produced only by the power of God; and the passage, therefore, proves that it is a doctrine of the Old Testament, as it is of the New, that the human heart is changed only by a divine agency.

And renew a right spirit within me - Margin, "a constant spirit." The Hebrew word - נכון nākûn - means properly, that which is "erect," or that which is made to stand up, or which is firm or established. It is used to denote

(a) that which is upright, right, proper: Exodus 8:26; Job 42:8; Psalm 5:9;

(b) that which is right, true, sincere, Psalm 78:37;

(c) that which is firm, constant, fixed.

This would seem to be the meaning here. He prays for a heart that would be firm in the purposes of virtue; that would not yield to temptation; that would carry out holy resolutions; that would be stedfast in the service of God. The word "renew" here means to be or to make new; to produce something new. It is also used in the sense of making anew, as applied to buildings or cities in the sense of "rebuilding" or "repairing" them: Isaiah 61:4; 2 Chronicles 15:8; 2 Chronicles 24:4. The word here would naturally convey the idea that there had been formerly a right and proper spirit in him, which he prayed might now be restored. The language is that of one who had done right formerly, but who had fallen into sin, and who desired that he might be brought back into his former condition.

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 Psalm 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.

Create in me a clean heart, O God,.... Which was now defiled with sin, and of which being convinced, he was led more and more to see the impurity of his heart and nature, from which all his evil actions flowed; and being sensible that he could not make his heart clean himself, and that this was the work of God, and a work which required creating power, he entreats it of him: for as the first work of conversion is no other than a creation, or a production of something new, which was not before; so the restoring of a backslider, as it goes by the same name, it requires the same power; and as the implantation of grace at first, and particularly of faith, is a work of almighty power; so the same power must be put forth to bring it into exercise, after falls into sin; that it may afresh deal with the heart purifying blood of Christ, which only can make it clean, and is what is here meant;

and renew a right spirit within me; by which is designed, not the Holy Spirit of God (k); for he is the renewer; nor the spirit or soul of man as to its essence; but with respect to the qualities of it; and here it signifies a renewing of the inward man, or an increase of grace, and causing it to abound in act and exercise; and intends a spirit of uprightness and integrity, in opposition to dissimulation and hypocrisy; a spirit "prepared and ready" (l) to every good work, Matthew 26:41; "one firm" (m) and unmoved from obedience to the Lord, by sin, temptations, and snares; a heart fixed, trusting in the Lord, and comfortably assured of an interest in pardoning grace and mercy.

(k) Vid. Zohar in Gen. fol. 107. 3.((l) "paratum seu promptum", Gejerus, Michaelis; so Ainsworth. (m) "Firmua", Junius & Tremellius, Piscator, Cocceius.

In the second part, the prayer for justification is followed by the prayer for renewing. A clean heart that is not beclouded by sin and a consciousness of sin (for לב includes the conscience, Psychology, S. 134; tr. p. 160); a stedfast spirit (נכון, cf. Psalm 78:37; Psalm 112:7) is a spirit certain respecting his state of favour and well-grounded in it. David's prayer has reference to the very same thing that is promised by the prophets as a future work of salvation wrought by God the Redeemer on His people (Jeremiah 24:7; Ezekiel 11:19; Ezekiel 36:26); it has reference to those spiritual facts of experience which, it is true, could be experienced even under the Old Testament relatively and anticipatively, but to the actual realization of which the New Testament history, fulfilling ancient prophecy has first of all produced effectual and comprehensive grounds and motives, viz., μετάνοια (לב equals νοῦς), καινὴ κτίσις, παλιγγενεσία καὶ ἀνακαὶνωσις πνεῦματος (Titus 3:5). David, without distinguishing between them, thinks of himself as king, as Israelite, and as man. Consequently we are not at liberty to say that רוּח הקּדשׁ (as in Isaiah 63:16), πνεῦμα ἁγιωσύνης equals ἅγιον, is here the Spirit of grace in distinction from the Spirit of office. If Jahve should reject David as He rejected Saul, this would be the extreme manifestation of anger (2 Kings 24:20) towards him as king and as a man at the same time. The Holy Spirit is none other than that which came upon him by means of the anointing, 1 Samuel 16:13. This Spirit, by sin, he has grieved and forfeited. Hence he prays God to show favour rather than execute His right, and not to take this His Holy Spirit from him.

{i} Create in me a clean heart, O God; and renew a right spirit within me.

(i) He confesses that when God's Spirit is cold in us, to have it again revived, is as a new creation.

51:10 Create - Work in me an holy frame of heart, whereby my inward filth may be purged away. Right - Heb. firm or constant, that my resolution may be fixed and unmoveable. Spirit - Temper or disposition of soul.

right: or, constant

10. Create-a work of almighty power.

in me-literally, "to me," or, "for me"; bestow as a gift, a heart free from taint of sin (Ps 24:4; 73:1).

renew-implies that he had possessed it; the essential principle of a new nature had not been lost, but its influence interrupted (Lu 22:32); for Ps 51:11 shows that he had not lost God's presence and Spirit (1Sa 16:13), though he had lost the "joy of his salvation" (Ps 51:12), for whose return he prays.

right spirit-literally, "constant," "firm," not yielding to temptation.

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?