Psalms (Author Moses, David, Solomon, Asaph, Heman, Ethan, sons of Korah, compiled by Ezra)
Chapter 51
2Wash me thoroughly from mine iniquity, and cleanse me from my sin.7Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.