Jeremiah 38:6, 10-13

So they took me and put me into the muddy cistern of the king’s son Malchiah in the palace courtyard. There was little water in the cistern, only mud. They lowered me down with ropes, and I sank down deep into the mud.

So the king commanded Ebed-Melech, “Take thirty men with you from the palace guard and pull the prophet Jeremiah out of the cistern before he dies.” So he went with the men into the palace to a room under the treasury and took some worn-out clothing and rags and lowered them on ropes to me in the cistern. Ebed-Melech then shouted down to me, “Here, put these worn-out clothes and rags under your armpits to pad the ropes.” So they hauled me up from the cistern and pulled me out, and I remained in confinement in the palace guardhouse.