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

All the leaders of the town nearest the murder victim are to wash their hands over the cow whose neck was broken in the vadi.

I will wash my hands in innocence and walk around your altar, ADONAI,

When Pilate saw that he was accomplishing nothing, but rather that a riot was starting, he took water, washed his hands in front of the crowd, and said, "My hands are clean of this man's blood; it's your responsibility."