Finally, there will be a fourth kingdom as strong as iron; for iron shatters and crushes all things, and like iron that crushes all things, it will shatter and crush all the others.
Jewish Publication Society of America Version (JPS1917) - Daniel 2:40 >And the fourth kingdom shall be strong as iron; forasmuch as iron breaketh in pieces and beateth down all things; and as iron that crusheth all these, shall it break in pieces and crush.