Jeremiah 38:6, 10-13

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.

Then the king commanded Ebed-Melek the Cushite, “Take thirty men from here with you and lift Jeremiah the prophet out of the cistern before he dies.” So Ebed-Melek took the men with him and went to a room under the treasury in the palace. He took some old rags and worn-out clothes from there and let them down with ropes to Jeremiah in the cistern. Ebed-Melek the Cushite said to Jeremiah, “Put these old rags and worn-out clothes under your arms to pad the ropes.” Jeremiah did so, and they pulled him up with the ropes and lifted him out of the cistern. And Jeremiah remained in the courtyard of the guard.