Albert Barnes Commentary Jeremiah 19:11

"and shalt say unto them, Thus saith Jehovah of hosts: Even so will I break this people and this city, as one breaketh a potter`s vessel, that cannot be made whole again; and they shall bury in Topheth, till there be no place to bury." — Jeremiah 19:11 (ASV)

Made whole again - literally, “healed.” In this lies the distinction between this symbol and that of Jeremiah 18:4. The plastic clay can be shaped and re-shaped until the potter forms with it the vessel he had predetermined: the broken bottle is of no further use, but its fragments are cast away forever upon the heaps of rubbish deposited in Tophet.