Psalms 51:7

The possession of all possessions, however, most needed by him, the foundation of all other possessions, is the assurance of the forgiveness of his sins. The second futures in Psa 51:9 are consequents of the first, which are used as optatives. Psa 51:9 recalls to mind the sprinkling of the leper, and of one unclean by reason of his contact with a dead body, by means of the bunch of hyssop (Lev. 14, Num. 19), the βοτάνη καθαρτική (Bhr, Symbol. ii. 503); and Psa 51:9 recalls the washings which, according to priestly directions, the unclean person in all cases of uncleanness had to undergo. Purification and washing which the Law enjoins, are regarded in connection with the idea implied in them, and with a setting aside of their symbolic and carnal outward side, inasmuch as the performance of both acts, which in other cases takes place through priestly mediation, is here supplicated directly from God Himself. Manifestly בּאזוב (not כבאזוב) is intended to be understood in a spiritual sense. It is a spiritual medium of purification without the medium itself being stated. The New Testament believer confesses, with Petrarch in the second of his seven penitential Psalms: omnes sordes meas una gutta, vel tenuis, sacri sanguinis absterget. But there is here no mention made of atonement by blood; for the antitype of the atoning blood was still hidden from David. The operation of justifying grace on a man stained by the blood-red guilt of sin could not, however, be more forcibly denoted than by the expression that it makes him whiter than snow (cf. the dependent passage Isa 1:18). And history scarcely records a grander instance of the change of blood-red sin into dazzling whiteness than this, that out of the subsequent marriage of David and Bathsheba sprang Solomon, the most richl…

I. See here what David prays for. Many excellent petitions he here puts up, to which if we do but add, "for Christ's sake," they are as evangelical as any other. 1. He prays that God would cleanse him from his sins and the defilement he had contracted by them (Psa 51:7): "Purge me with hyssop; that is, pardon my sins, and let me know that they are pardoned, that I may be restored to those privileges which by sin I have forfeited and lost." The expression here alludes to a ceremonial distinction, that of cleansing the leper, or those that were unclean by the touch of a body by sprinkling water, or blood, or both upon them with a bunch of hyssop, by which they were, at length, discharged from the restraints they were laid under by their pollution. "Lord, let me be as well assured of my restoration to thy favour, and to the privilege of communion with thee, as they were thereby assured of their re-admission to their former privileges." But it is founded upon gospel-grace: Purge me with hyssop, that is, with the blood of Christ applied to my soul by a lively faith, as water of purification was sprinkled with a bunch of hyssop. It is the blood of Christ (which is therefore called the blood of sprinkling, Heb 12:24), that purges the conscience from dead works, from that guilt of sin and dread of God which shut us out of communion with him, as the touch of a dead body, under the law, shut a man out from the courts of God's house. If this blood of Christ, which cleanses from all sin, cleanse us from our sin, then we shall be clean indeed, Heb 10:2. If we be washed in this fountain opened, we shall be whiter than snow, not only acquitted but accepted; so those are that are justified. Isa 1:18, Though your sins have been as scarlet, they shall be white as snow. 2. He prays that,…

51:7 Purify me from my sins (literally Purify me with the hyssop branch; see Exod 12:22; Lev 14:4; John 19:29; Heb 9:19): The psalmist depends on God to purify and renew him (see Isa 1:18).