Daniel 2:31-35 (NIV)
31 “Your Majesty looked, and there before you stood a large statue—an enormous, dazzling statue, awesome in appearance. 32 The head of the statue was made of pure gold, its chest and arms of silver, its belly and thighs of bronze, 33 its legs of iron, its feet partly of iron and partly of baked clay. 34 While you were watching, a rock was cut out, but not by human hands. It struck the statue on its feet of iron and clay and smashed them. 35 Then the iron, the clay, the bronze, the silver and the gold were all broken to pieces and became like chaff on a threshing floor in the summer. The wind swept them away without leaving a trace. But the rock that struck the statue became a huge mountain and filled the whole earth.