Psalm 51 (50):9Meaning & Commentary from the Church Fathers

Are you curious about His ability to remove transgressions? Although your sins may be crimson, He promises to make them as white as snow (Isaiah 1:18). In another scripture, it is articulated more explicitly: “Sprinkle me with hyssop, and I shall be clean.” Hyssop symbolizes the herb that was dipped in blood, a means through which sinners were cleansed among the people. “Wash me, and I shall be whiter than snow.” If the existence of souls arises from His goodness, their sanctification and purity come to us even more abundantly. Therefore, do not despair, believing that transformation is beyond reach, as sin is an unnatural condition. Sin represents an action in opposition to God's will, and not returning to repentance also goes against His desires.

The prophet declares, "Sprinkle me with hyssop, and I will be cleansed; wash me, and I will be whiter than snow. Let joy and gladness fill my ears" (Ps. 50: 9-10). To indicate that hyssop represents the cleansing of arrogance, the prophet further states, "The bones of the humble will rejoice."

You don white garments, symbolizing that you have cast aside the shroud of sin and embraced the pure attire of virtue. This mirrors the words of the prophet: "You shall sprinkle hyssop on me, and I shall be cleansed; you shall wash me, and I shall be whiter than snow." It is made clear through both the Law and the Gospel that anyone who receives baptism is made pure. In accordance with the Law, because Moses purified with the blood of the lamb using a bundle of hyssop; and in line with the Gospel, as Christ's robes appeared dazzling white when He revealed the majesty of His resurrection. He is whiter than snow to whom forgiveness is granted. Therefore, the Lord declares through Isaiah: "If your sins be as scarlet, they shall be as white as snow" (Isaiah 1:18).

Only the sacrament of baptism can effectuate this purification. The Sovereign of all pledged to grant this cleansing through the prophet Isaiah, who proclaimed, “Wash yourselves and be clean; take away the deceit from your hearts.” He further reassured, “If your sins be as scarlet, they shall be as white as snow” (Isaiah 1:16-18). Additionally, King David, in the sixtieth-seventh Psalm, prophesied this when he remarked, “When the heavenly One scatters the kings, they shall snow in Selmon” (Psalm 67:15). Thus, it can be concluded that I require this grace, which is available to all, for it alone possesses the power to thoroughly cleanse me, imparting the purity of snow.

Sprinkle me with hyssop, and I will be purified. Various interpretations have been put forth to understand this statement, yet none can be deemed entirely favorable. Nevertheless, I believe that David is here prophesying about himself, yearning to be entirely liberated from sin and filled with joy. Just as the application of hyssop, which has the ability to cleanse lepers of their impurity, signifies spiritual purification, David expresses his desire for cleansing in this vein: Sprinkle me with hyssop that I might be wholly absolved of the stains of sin, which can only come through Your mighty decree of forgiveness or through tears of repentance; and even these tears, as a gift from You, originate from You. Cleanse me, and I will be whiter than snow. This sentiment and the joy it brings are echoed with the same fervor.

Hyssop was an herb that the Jewish people used to apply sacrificial blood for purification. The phrase “Sprinkle hyssop on me, and I shall be cleansed; wash me, and I shall be whiter than snow” conveys our plea for the Lord to bestow His mercy upon us, purifying us from our transgressions.

This passage of prepositional phrases illustrates David’s diligence in seeking God’s favor. By referencing hyssop, he aligns himself with the ancient ceremonial regulations, not out of reliance on mere external symbols of purification, but with the understanding that nothing within the law is to be regarded as purposeless. The sacrifices and rituals of the Old Testament served solely as representations of God’s grace, leading him to justly pursue a path for reconciliation with the Divine, much as we today reinforce our faltering faith through those same means. While it is essential to seek our cleansing solely through the precious blood of Jesus Christ, spiritual grace remains invisible to our physical senses, making it necessary to use outward signs to find solace in God’s mercy. The same understanding applies to the act of washing: the ritual sprinklings practiced by the Jews under the law signified that through these acts they purified themselves from all impurities and, in doing so, sought to win God’s favor.

Sprinkle hyssop on me, and I will be made clean. This particular herb, hyssop, was revered for its purifying qualities; it played a role in the ritual of applying the blood of the Passover lamb (Exodus 12:22), in the ritual cleansing of lepers (Leviticus 14:4, 6, 52), and in collecting the water meant for purification (Numbers 19:6), as well as in the act of sprinkling that water (Numbers 19:18). Consequently, hyssop became a powerful symbol of spiritual cleansing. In light of this, the Old Testament rituals foreshadow the ultimate purification through the sacrifice of Christ. Thus, when David requests, “Sprinkle hyssop upon me,” it signifies, as St.

Ultimately, throughout all ages, this psalm, inspired by the Holy Spirit and written by David, can serve as a song of repentance for all who have sinned, for through repentance one can evade the harshness of God's judgment. Moreover, this psalm holds the prophecy concerning the Incarnation of Christ, the Redeemer of sinners, for whom the prophet, longing for Him in accordance with God's promise, exclaims, “Give me the joy of Thy salvation.” God's original design was not for humanity to enter the world through union and corruption. However, the disobedience of Adam and Eve to God's command led to the institution of marriage, and thus all descendants of Adam are brought forth in sin. The prophet does not indict marriage itself, but rather highlights the wrongdoing of the ancestors.