# Is this a despised and shattered vessel? ... did not know?

It is not clear who is speaking in verse 28.

# Is this a despised and shattered vessel? Is this man Jehoiachin a pot that pleases no one?

"Jehoiachin is as useless as a broken vessel and no one is happy with him."

# Why have they thrown him and his descendants out, and have poured them out into a land that they did not know?

"Therefore the enemy will remove Jehoiachin and his family from the land and take them to a foreign land."

# have poured them out

Jehoiachin and his descendants are spoke of like garbage from a vessel.