Charles Ellicott Commentary Jeremiah 52:12

"Now in the fifth month, in the tenth day of the month, which was the nineteenth year of king Nebuchadrezzar, king of Babylon, came Nebuzaradan the captain of the guard, who stood before the king of Babylon, into Jerusalem:" — Jeremiah 52:12 (ASV)

In the tenth day of the month. — 2 Kings 25:8 gives the “seventh day.” We have no means of ascertaining which of the two statements is the more accurate. The Jews have always kept the ninth day as a commemorative fast. And this date is given in the Syriac version of 2 Kings.

Which served the king of Babylon. —Better, which stand before the king. The Hebrew word is one used continually of honourable service (Jeremiah 35:19; Numbers 27:2; Numbers 27:21; Deuteronomy 1:30). In 2 Kings 25:8 we have the less accurate term of “servant” or “slave,” or “captain of the guard.” (See Note on Jeremiah 39:9.)