Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow.
Ver. 7. Purge me with hyssop, and I shall be clean] Sprinkle me with the blood of Christ by the hyssop bunch of faith, not only taking away thereby the sting and stink of sin, but conferring upon me the sweet savour of Christ's righteousness imputed unto me. See Hebrews 9:13,14; Hebrews 9:19, where he calleth it hyssop; of which see Dioscorides, lib. 3, chap. xxvi., xxviii. David multiplieth his suit for pardon, not only in plain terms, but by many metaphors.
Wash me, and I shall be whiter than snow] So we cannot be by any washings of our own, though with snow water, Isaiah 1:16. The bride's garments are made white in the Lamb's blood, Revelation 1:14; the foulest sinners washed in this fountain become white as the snow in Salmon, Isa 1:18 1Co 6:11 Ephesians 5:27. Peccata non redeunt.