Daniel 2:41

And just as you saw that the feet and toes were made partly of fired clay and partly of iron, so this will be a divided kingdom, yet some of the strength of iron will be in it—just as you saw the iron mixed with clay.

And whereas thou sawest the feet and toes, part of potters’ clay, and part of iron, the kingdom shall be divided; but there shall be in it of the strength of the iron, forasmuch as thou sawest the iron mixed with miry clay.