more interesting "baptism" information that is really cool:
The Levites were servants in the
Beit haMikdash/Sanctuary or Temple. The ceremony that separated them unto the service of G-d and cleanse them from
tomeh/ritually impurity consisted of an immersion according to Numbers 8:15 as it is written:
"And after that shall the Levites go in to do the service of the tabernacle of the congregation: and thou shalt cleanse them, and offer them for an offering".
This applies to us as servants of the L-rd, we are set aside for the service to the L-rd and our body is a living sacrifice as recorded in the words of
Rav Shaul/Rabbi Paul in Romans 12:1 as it is written:
"I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service".