Psalm 51:7 in the King James Version
Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow.
Context
6 Behold, you desire truth in the inward parts. You teach me wisdom in the inmost place.
7 Purify me with hyssop, and I will be clean. Wash me, and I will be whiter than snow.
8 Let me hear joy and gladness, that the bones which you have broken may rejoice.