Here's a bit more interesting stuff about Jewish baptism if you care to read a bit.
It does point out the importance of immersion as the proper form of baptism.
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How Immersion Was Done
Jewish baptism has never been taken lightly, but in ancient times immersion was to be performed in the presence of witnesses (Yebam. 47b). The person being baptized made special preparations by cutting his nails, undressed completely and made a fresh profession of his faith before the designated "fathers of the baptism" (Kethub. 11a; Erub 15a). This is possibly where churches, sometime later, got the term Godfathers. The individual stood straight up with the feet spread and the hands held out in front. The candidate would totally immerse themselves by squatting in the water with a witness or baptizer doing the officiating. Note the New Testament points out the fact that Jesus came up straightway out of the water (
Matthew 3:16).
The earliest drawing of Christian baptism was found on the wall of a Roman catacomb in the second century showing John standing on the bank of the Jordan helping Jesus back to shore after self immersion.
Ancient sages teach that the word mikveh has the same letters as Ko(v)Meh, the Hebrew word for "rising" or "standing tall," therefore we see the idea of being baptized "straightway."
Although it is the Jewish belief that repentance is necessary, purification from defilement is done primarily through water, while other effects of sins are covered by blood (
Romans 4:7; note the "almost all things" in
Hebrews 9:22). The concept of immersion in rabbinic literature is referred to as a new birth (Yeb. 22a; 48b; 97b; Mass. Ger. c.ii). Note six other important aspects of ancient Jewish immersion:
1.Immersion was accompanied by exhortations and benedictions (Maimonides Hilkh. Milah iii.4; Hilkh. Iss, Biah Xiv .6). A convert would reaffirm his acceptance of the Torah by declaring, "I will do and I will hear" which was a phrase from the oath that was originally taken by the priests not to forsake the Torah (
Deuteronomy 29:9- 14). This ritual demonstrates the willingness of the convert to forsake his Gentile background and assume his Jewish identity by taking on the status of one who keeps the commandments.
According to a number of Jewish sages, mayim, which is the Hebrew word for water, shares the same root as the word "mah", meaning "what." This teaching points out that when a person immerses in water, he is nullifying the fleshly ego and is asking, "what am I?" in the same manner that Moses and Aaron did in
Exodus 16:7 when they said to the Lord, "we are what?"
2. The Jewish baptism candidates were often immersed three times. The idea of total immersion comes from the Scripture in
Leviticus 15:16 when it says, "he shall wash all his flesh in the water." One reason it was customary to immerse three times was because the word mikveh occurs three times in the Torah.
3. According to Jewish law the immersion had to have a required witness. Dr. William LaSor in the Biblical Archaeology Review says apparently the Biblical phrase "in the name of" was an indication of the required witness. In several New Testament references such as
I Corinthians 1:13, 15;
Matthew 21:25;
Acts 1:22; and
Acts 19:3 we see early baptism mentioned in conjunction with the name of individuals such as John and Paul. Further information on this can be found in Jewish literature concerning proselyte baptism where it indicates his baptism required attestation by witnesses in whose name he was immersed.
4. The immersion candidate was not touched by the baptizer in Jesus' day. Because
Leviticus 15:16 says "He shall wash all his flesh in the water," Judaism stresses that the entire body must come in contact with the water of the mikveh. To insure the immersion was valid, no clothing or individuals could touch the candidate. Any such intervention that prevented the water from reaching a part of the body was known as Chatzitzah and rendered the immersion invalid. Although the mikveh was more spiritual than physical, often the bath had two sets of steps, one entering and another leaving so as not to defile what had been purified.
5. The baptismal water (Mikveh) in rabbinic literature was referred to as the womb of the world, and as a convert came out of the water it was considered a new birth separating him from the pagan world. As the convert came out of these waters his status was changed and he was referred to as "a little child just born" or "a child of one day" (Yeb. 22a; 48b; 97b). We see the New Testament using similar Jewish terms as "born anew," "new creation," and "born from above." According to Dr. Arnold Fruchtenbaum rabbinic literature uses the term "born again" to refer to at least six different occurrences. Note each of these life changing experiences: (a) When a Gentile converts to Judaism. (b) When an individual is crowned king. (c) At age 13 when a Jewish boy chooses to embrace God's covenant and be numbered with the believers. (d) When an individual gets married. (e) When an individual becomes a rabbi. (f) When an individual becomes the head of a rabbinical school.
6. Jewish law requires at least three witnesses made up of qualified leaders to be present for certain immersions (Yebam 47b). Ordinarily a member of the Sanhedrin performed the act of observing the proselytes immersion, but in case of necessity others could do it. Secret baptism, or where only the mother brought a child, was not acknowledged.