Jeremiah 38:6, 7

So they took Jeremiah and put him into the cistern of Malkijah, the king’s son, which was in the courtyard of the guard. They lowered Jeremiah by ropes into the cistern; it had no water in it, only mud, and Jeremiah sank down into the mud.

But Ebed-Melek, a Cushite, an official in the royal palace, heard that they had put Jeremiah into the cistern. While the king was sitting in the Benjamin Gate