And many among them - Many by the invasion under the Assyrian. Many were taken captive; many killed. and many were carried to Babylon. The repetition here of so many expressions so nearly synonymous is emphatic, and shows that it would be certainly done.
Related Commentaries of Isaiah 8:15
Isaiah 8:15
15 And many among them shall stumble, and fall, and be broken, and be snared, and be taken.