Bible Verses About Ablution: Of the hands, as a token of innocency

All the elders of that city, who are nearest to the slain man, shall wash their hands over the heifer whose neck was broken in the valley.

I will wash my hands in innocence, so I will go about your altar, LORD;

So when Pilate saw that nothing was being gained, but rather that a disturbance was starting, he took water, and washed his hands before the multitude, saying, “I am innocent of the blood of this righteous person. You see to it.”