And whereas thou sawest iron mixed with miry clay, they shall mingle themselves with the seed of men: but they shall not cleave one to another, even as iron is not mixed with clay.

And since you saw iron mixed with muddy clay, they will combine with people's offspring. But they won't stick together well, just like how iron doesn't mix with clay.

King James Version

Simple English

* Work in progress - there may be occasional inaccuracies