Bible Dictionaries
Rab-Mag

　　 RAB-MAG . The title of Nergal-sharezer , a Babylonian official present at the taking of Jerusalem ( Jeremiah 39:3; Jeremiah 39:13 ). For various conjectures as to the origin of the title, see Hastings’ DB [Note: Dictionary of the Bible.] , s.v. Tentatively adopting the oldest and most obvious account, that it means ‘chief magus,’ we note here that the name magus may very well have been applied to a sacred caste employed in Babylon long before it became associated with Zoroastrianism, to which the silence of the Avesta shows it was originally foreign. See Magi.

　　James Hope Moulton.