'Miry' in the Bible

Its miry and its marshy places -- they are not healed; to salt they have been given up.

As to that which thou hast seen: the feet and toes, part of them potter's clay, and part of them iron, the kingdom is divided: and some of the standing of the iron is to be in it, because that thou hast seen the iron mixed with miry clay.

Because thou hast seen iron mixed with miry clay, they are mixing themselves with the seed of men: and they are not adhering one with another, even as iron is not mixed with clay.