Bible Verses About Water: For legal purification

"Bring Aharon and his sons to the entrance of the tent of meeting, and wash them with water.

For they involve only food and drink and various ceremonial washings — regulations concerning the outward life, imposed until the time for God to reshape the whole structure.

After Moshe had proclaimed every command of the Torah to all the people, he took the blood of the calves with some water and used scarlet wool and hyssop to sprinkle both the scroll itself and all the people;