The Talmud has a section in which it claims that Elisha ben Abuyah, also called Aher ("another", as he was an apostate), entered Paradise and saw Metatron sitting down (an action that in heaven is permissible only to God Himself). Elishah ben Abuyah therefore looked to Metatron as a deity and said heretically, "There are indeed two powers in heaven!" The rabbis explain that Metatron was allowed to sit because of his function as the Heavenly Scribe, writing down the deeds of Israel (Babylonian Talmud, Hagiga 15a).
"... the Talmud states, it was proved to Elisha that Metatron could not be a second deity by the fact that Metatron received 60 'strokes with fiery rods' to demonstrate that Metatron was not a god, but an angel, and could be punished." -
In opposition to this apology, Metatron is identified with the term "lesser YHVH", which is the Lesser Tetragrammaton, in a Talmudic version as cited by the Karaite scholar Kirkisani. The word 'Metatron' is numerically equivalent to Shaddai (God) in Hebrew gematria; therefore he is said to have a "Name like his Master." It should be noted, however, that Kirkisani may have misrepresented the Talmud in order to embarrass his Rabbanite opponents with evidence of dualism. On the other hand, extra-talmudic mystical texts (see below regarding Sefer Hekhalot) do speak of a "lesser YHVH," apparently deriving the concept from Exodus 23:21, which mentions an angel of whom God says "My name [understood as YHVH, the usual divine proper name] is in him."
The Babylonian Talmud mentions Metatron in two other places: Sanhedrin 38b and Avodah Zarah 3b. Yevamot 16b describes in the amoraic period the duties of 'prince of the world' being transferred from Michael to Metatron.
Metatron is also mentioned in the Pseudepigrapha, most prominently in the Hebrew/Merkabah Book of Enoch, also called 3 Enoch or Sefer Hekhalot (Book of [the Heavenly] Palaces). The book describes the link between Enoch son of Jared (great grandfather of Noah) and his transformation into the angel Metatron. His grand title "the lesser YHVH" resurfaces here. Metatron says, "He [the Holy One]… called me, 'The lesser YHVH' in the presence of his whole household in the height, as it is written, 'My name is in him.'" (12:5, Alexander's translation). The narrator of this book, supposedly Rabbi Ishmael, tells how Metatron guided him through Heaven and explained its wonders. Here Metatron is described in two ways: as a primordial angel (9:2–13:2) and as the transformation of Enoch after he was assumed into Heaven.
"Enoch walked with God; then he was no more, because God took him away." —Genesis 5:24 NIV.
"This Enoch, whose flesh was turned to flame, his veins to fire, his eye-lashes to flashes of lightning, his eye-balls to flaming torches, and whom God placed on a throne next to the throne of glory, received after this heavenly transformation the name Metatron." - Gershom G. Scholem, Major Trends in Jewish Mysticism (1941/1961) p. 67. Extract of 3 Enoch.
While this identification of Metatron with Enoch is not to be found in the Talmud itself, the connection is assumed by some of the earliest kabbalists. There also seem to be two Metatrons, one spelled with six letters (оиишеп), and one spelled with seven (ойиишеп). The former may be the transformed Enoch, Prince of the Countenance within the divine palace; the latter, the Primordial Metatron, an emanation of the "Cause of Causes," specifically the tenth and last emanation, identified with the earthly Divine Presence.
According to Johann Andreas Eisenmenger, Metatron transmits the daily orders of God to the angels Gabriel and Sammael. Metatron is often identified as being the twin brother to Sandalphon, who is said to have been the prophet Elijah.
The Zohar calls Metatron "the Youth" a title previously used in 3 Enoch, where it appears to mean "servant". It identifies him as the angel that led the people of Israel through the wilderness after their exodus from Egypt, and describes him as a heavenly priest.
VM Samael Aun Weor identifies Metatron as the Prophet Enoch, the Angel who provided humanity with the 22 Hebrew letters and the original Tarot, stating that the Angel lives in the superior worlds in the region Aziluth (The Initiatic Path in the Arcana of Tarot and Kabbalah).