"Purge me with hyssop & I shall be clean: wash me & I shall be whiter than snow...Create in me a clean heart, O God;& renew a right spirit within me. Cast me not away from thy presence; & take not thy holy spirit from me. Restore unto me the joy of thy salvation;& uphold me with thy free spirit. Then will I teach transgressors thy ways;& sinners shall be converted unto thee."
~Psalms 51:7-13