(12) Joy of thy salvation.--This again points to a sense of restoration of covenant privileges.

Thy free spirit.--Rather, with a willing spirit. Or we may render, a willing spirit shall support me.

Verse 12. - Restore unto me the joy of thy salvation. Give me back that "joy" which was mine when I was conscious of thy favour, and felt that thou wert my Strength and my Salvation (Psalm 18:1; Psalm 62:2, etc.). And uphold me with thy free spirit. There is no "thy" in the original; and it is his own spirit, not God's Spirit, of which the psalmist here speaks. "Uphold me," he says, "preserve me from falling, by giving me a 'free,' or 'generous,' or 'noble' spirit - the opposite of that 'spirit of bondage' which the apostle says that Christians do not receive" (Romans 8:15).

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?Restore unto me the joy of thy salvation,.... Not temporal, but spiritual and eternal; and designs either Christ himself, who is God's salvation, of his appointing and providing, in the view of whom, as such, David had much spiritual joy; or the salvation he was to work out, which God the Father had contrived the scheme of in him, had covenanted with him to do, and had appointed his people to: salvation itself is a sure thing, and can never fail, being founded upon the purpose and counsel of God, which shall ever stand; and is secured in the covenant of grace, which can never be removed; and is now completely wrought out by Christ, and is applied by his Spirit to the heirs of it, who shall certainly and fully enjoy it; otherwise the glory of all the three Persons in it would be lost: but the joy of it may be interrupted and discontinued for a while, through falls into sin, as this case of David, and the case of Peter, show; and therefore a restoration of it is desired, by showing a fresh interest in this salvation; and particularly by an application of pardoning grace and mercy; see Psalm 35:3;

and uphold me with thy free Spirit: or "let thy free Spirit uphold me" (n); the same with the Holy Spirit of God; called "free", because he is a most free and munificent giver: he gives his grace, and bestows his gifts severally, as he pleases, and liberally, and upbraids not; and because he is freely given of God; his graces are freely given, as faith, hope, love, &c. and because he frees them to whom he is given from the bondage of sin and corruption, and makes them Christ's free men, and delivers them into the liberty of the children of God; and so is a spirit of adoption, in opposition to a spirit of bondage, by which they have freedom and boldness to call God their Father; and by whom also they have liberty of soul at the throne of grace, and can freely make known their requests, and spread their cases before God; see Romans 8:15; also he may be so called, because he makes the saints ready and willing to obey the will of God, and to run with cheerfulness the way of his commandments; and is moreover "a princely spirit" (o), or beneficent, as some choose to render the words; and which becomes such who are set among princes, and are made kings and priests unto God: and with this spirit the psalmist desires to be "upheld", to be strengthened by it, to do the will and work of God, that so he might not stumble and fall into sin as he had done; that he might be stayed, supported, and comforted with it, as the Holy Spirit of promise; that so he might not faint and sink under his present sense of sin, and the guilt of it; and that he would be not only a guide unto him in the ways of God, but that he would hold up his goings in them, that so he might walk both at liberty and in safety. The Targum interprets this also of the spirit of prophecy.

(n) So Vatablus, Piscator, Cocceius, Gejerus, Schmidt. (o) , Sept. "spiritu principali", V. L. Tigurine version; "munifico", so some in Vatablus.