Bible Verses About Purification: Washing hands in water, symbolic of innocency

and all the elders of that city, who are near unto the slain one, do wash their hands over the heifer which is beheaded in the valley,

I wash in innocency my hands, And I compass Thine altar, O Jehovah.

And Pilate having seen that it profiteth nothing, but rather a tumult is made, having taken water, he did wash the hands before the multitude, saying, `I am innocent from the blood of this righteous one; ye--ye shall see;'