Now Jeremiah said that Yahweh was well pleased with the Rechabites because they obeyed the commandments of their ancestor Jonadab. They kept all his precepts and followed all his commands. Therefore Yahweh would make sure that they would never lack a descendant until the end of time. This group would continue on, something like the Davidic line of kings.
This is almost word for word from chapter 23 of this work. Yahweh indicates that a future Davidic king would rule in both Judah and Jerusalem, not Israel as in chapter 23. This king would come from David’s righteous branch. He would rule wisely with justice and righteousness. Judah would be saved and Jerusalem, not Israel, would live in safety. The name of Jerusalem would be called “Yahweh of our righteousness.” However, Yahweh said that they would never lack a descendant of David to sit on the throne as the king of Israel.