Isaiah 52:15 in the King James Version
So shall he sprinkle many nations; the kings shall shut their mouths at him: for that which had not been told them shall they see; and that which they had not heard shall they consider.
Context
14 Just as many were astonished at you— his appearance was marred more than any man, and his form more than the sons of men—
15 so he will cleanse many nations. Kings will shut their mouths at him; for they will see that which had not been told them, and they will understand that which they had not heard.