2 Kings 19:31 - Joseph Benson’s Commentary on the Old and New Testaments

For out of Judah shall go forth a remnant That handful of Jews who were now gathered together, and shut up in Jerusalem, should go out to their several habitations, and, by God's singular blessing, increase exceedingly. The zeal of the Lord 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; yet God will do it from the zeal which he hath, both for his own name, and for the good of his undeserving people.