Albert Barnes Commentary Jeremiah 22:28

"Is this man Coniah a despised broken vessel? is he a vessel wherein none delighteth? wherefore are they cast out, he and his seed, and are cast into the land which they know not?" — Jeremiah 22:28 (ASV)

Idol - Rather, vessel. Is Coniah a mere piece of common earthenware in which the potter has no pleasure, and therefore breaks it? It is a lamentation over Jehoiachin’s hard fate, and that of his seed. This and the two following verses may have been written after the king had been carried into captivity.