Thus says the Lord of hosts, the God of Israel: Jonadab son of Rechab shall not lack a descendant to stand before me for all time.
I wonder if any of Jonadab's descendants are aware of this story and their heritage? Do they wonder why they keep having kids? (What!?! Again?) Do they feel part of a bigger story? Do they think about God? Does God ever think, "Boy, what a mistake, those Jonadab people are just a pain in the butt. Only if their line would dwindle...sheesh..."
The Bible's strange.