2 Kings 19:31 - Matthew Poole's English Annotations on the Holy Bible

A remnant; that handful of Jews who now were gathered together, and shut up in Jerusalem, shall go out to their several habitations, and by my singular blessing increase exceedingly. They that escape out of Mount Zion; the same thing expressed in other words, which is usual in the Hebrew language. The zeal of the Lord of hosts shall do this: although when you reflect upon yourselves, and consider either your present fewness and weakness, or your great unworthiness, this may seem too great a blessing for you to expect or believe; yet God will do it from the zeal which he hath, both for his own name, to vindicate it from the blasphemous reproaches of the Assyrians, and for the good of his undeserving people.