'Cleansed' in the Bible

‘Can [mortal] man be just before God or be more righteous than He?Can a man be pure before his Maker or be more cleansed than He?

If I washed myself with snow-water, and cleansed my hands in purity,

For thou saidst, What advantage will it be unto thee? and, What profit shall I have, if I be cleansed from my sin?

So then, they do not look at the light [when it is] bright in the skies, when [the] wind has passed and has cleansed them.