Nergal-sharezer Nergal, protect the king! (1.) One of the "princes of the king of Babylon who accompanied him in his last expedition against Jerusalem" (Jer 39:3, Jer 39:13). (2.) Another of the "princes," who bore the title of "Rabmag." He was one of those who were sent to release Jeremiah from prison (Jer 39:13) by "the captain of the guard." He was a Babylonian grandee of high rank.