The remnant that is escaped shall yet again bear fruit upward Shall increase and multiply greatly. It is a metaphor taken from plants. “The prophet passes from fields to men, and from the cultivation of land to the state of the church; for, having just said, that, being delivered from the Assyrians, they should cultivate their land as usual, he adds, that it should also come to pass that the kingdom and church, delivered from this calamity, should flourish again, increase, and bring forth much fruit; which we know happened under Hezekiah.” Dodd.
Related Commentaries of 2 Kings 19:30
2 Kings 19:30
30 And the remnantg that is escaped of the house of Judah shall yet again take root downward, and bear fruit upward.