Purifications or Baptisms by Washing the Whole Body
Source: TTT
Leviticus 8:6
Then Moses presented Aaron and his sons and washed them with water.
Leviticus 14:9
On the seventh day he must shave off all his hair—his head, his beard, his eyebrows, and the rest of his hair. He must wash his clothes and bathe himself with water, and he will be clean.