American Standard Version (ASV):
But the multitude of thy foes shall be like small dust, and the multitude of the terrible ones as chaff that passeth away: yea, it shall be in an instant suddenly.
King James Version (KJV):
Moreover the multitude of thy strangers shall be like small dust, and the multitude of the terrible ones [shall be] as chaff that passeth away: yea, it shall be at an instant suddenly.