Jeremiah 38:6-8

6Then they took Jeremiah, and cast him into the dungeon of Malchijah the son of Hammelech, which was in the court of the guard, and they let down Jeremiah with cords. And in the dungeon there was no water, but mire; and Jeremiah sank in the mire.

7And Ebed-melech the Ethiopian, a eunuch who was in the king's house, heard that they had put Jeremiah in the dungeon — now the king was sitting in the gate of Benjamin,

8— and Ebed-melech went forth out of the king's house, and spoke to the king, saying,