Jeremiah 37:21

Now at that time the military force of the king of Babylon was besieging Jerusalem, and Jeremiah the prophet was shut up in the court of the guard, which was in the house of the king of Judah,

Then the word of Yahweh came to Jeremiah the second time, while he was still confined in the court of the guard, saying,

Then they took Jeremiah and cast him into the cistern of Malchijah the king’s son, which was in the court of the guard; and they let Jeremiah down with ropes. Now in the cistern there was no water but only mire, and Jeremiah sank into the mire.

“My lord the king, these men have done evil in all that they have done to Jeremiah the prophet whom they have cast into the cistern; and he will die right where he is because of the famine, for there is no more bread in the city.”

So they pulled Jeremiah up with the ropes and brought him up from the cistern, and Jeremiah stayed in the court of the guard.

So Jeremiah stayed in the court of the guard until the day that Jerusalem was captured.