King James Bible Dictionary

"the captain of the guard," in rank next to the king, who appears prominent in directing affairs at the capture of Jerusalem (2 Kings 25:8-20; Jeremiah 39:11; 40:2-5). He showed kindness toward Jeremiah, as commanded by Nebuchadnezzar (40:1). Five years after this he again came to Jerusalem and carried captive seven hundred and forty-five more Jews.

(chief whom Nebo favors), the Rab-tabbachim i.e. chief of the slaughterers (Authorized Version "captain of the guard"), a high officer in the court of Nebuchadnezzar. On the capture of Jerusalem he was left by Nebuchadnezzar in charge of the city. Comp. (Jeremiah 39:11) He seems to have quitted Judea when he took down the chief people of Jerusalem to his master at Riblah. (2 Kings 25:18-20) In four years he again appeared. (Jeremiah 52:30) Nebuchadnezzar in his twenty-third year made a descent on the regions east of Jordan, including the Ammonites and Moabites, who escaped when Jerusalem was destroyed. Thence he proceeded to Egypt, and, either on the way thither or on the return, Nebuzaradan again passed through the country and carried off more captives. (Jeremiah 52:30)