This verse begins the description of Jerusalem’s destruction, the dismantling of the temple, the deportation to Babylon, and the execution of prominent Judeans. This description runs until 2 Kings 25:21.
The timing in Jeremiah 52:12 is a little different—not on the seventh, but on the tenth day does Nebuzaradan enter Jerusalem. The difference can be explained by a copying mistake in one of the two descriptions. Thus, this entry happens approximately one month after the wall is first breached, for it happens on the ninth day of the fourth month
(2 Kings 25:3, see also Jeremiah 39:2 and Jeremiah 52:6). It is likely that Nebuchadnezzar left Riblah. He was responsible for the deportation, the destruction of Jerusalem, and the robbing of the temple. This Nebuzaradan has played an important and positive role for Jeremiah (Jeremiah 39:11–14).
8 In the fifth month, on the seventh day of the month that was the nineteenth year of King Nebuchadnezzar, king of Babylon Nebuzaradan, the captain of the bodyguard, a servant of the king of Babylon, came to Jerusalem.