'Mud' in the Bible

So they took Jeremiah and dropped him into the cistern of Malchiah the king’s son, which was in the guard’s courtyard, lowering Jeremiah with ropes. There was no water in the cistern, only mud, and Jeremiah sank in the mud.

All the women who are left in the royal palace of Judah will be led out to the officers of the king of Babylon. They will taunt you saying, 'Your trusted friends misled you; they have gotten the best of you. Now that your feet are stuck in the mud, they have turned their backs on you.'