Daniel 2:41-43

“You saw that the statue’s feet and toes were partly baked clay and partly iron. That means the fourth kingdom will be a divided kingdom. It will have some of the strength of iron in it, just as you saw iron was mixed with clay. The toes of the statue were partly iron and partly clay. So the fourth kingdom will be partly strong like iron and partly breakable like clay. You saw the iron mixed with clay, but iron and clay do not hold together. In the same way the people of the fourth kingdom will be a mixture, but they will not be united as one people.