'Mud' in the Bible

I send it against a godless nationAnd commission it against the people of My furyTo capture booty and to seize plunder,And to trample them down like mud in the streets.

But the wicked are like the tossing sea,For it cannot be quiet,And its waters toss up refuse and mud.

Then they took Jeremiah and cast him into the cistern of Malchijah the king’s son, which was in the court of the guardhouse; and they let Jeremiah down with ropes. Now in the cistern there was no water but only mud, and Jeremiah sank into the mud.