Encyclopedia Judaica on Metatron
This extract is taken from Encyclopedia Judaic (Second Edition), Fred Skolnik, Editor in Chief, & Michael Berenbaum, Executive Editor, published by Keter Publishing House, 2002, Volume 14: Mel–Nas, pp. 132-134. All emphasis is mine.
METATRON (Matatron), angel accorded a special position in esoteric doctrine from the tannaitic period on.