Psalms 51:2

Psalms 51:2. Wash me throughly from mine iniquity, and cleanse me from my sin.

For he loathes it, it is abominable in his sight, his whole spirit seems sickened at the very recollection of it. He not merely prays, "Wash me," but "’Wash me thoroughly." Wash me thoroughly, not only from sin, but from the inequity of it, the wrongdoing of it, that wherein it was essentially sin, and when thou hast washed me, cleanse me, for, perhaps, washing will not be enough; there may need a cleansing by fire. Lord cleanse me anyhow, only do cleanse me from my sin."