Charles Ellicott Commentary Ezekiel 21:30

"Cause it to return into its sheath. In the place where thou wast created, in the land of thy birth, will I judge thee." — Ezekiel 21:30 (ASV)

Shall I cause it to return?— There is nothing in the original to indicate either a question, or that this is spoken in the first person. It is addressed to the Ammonites, “Return it” (the sword) “into his sheath,” and it means that all resistance will be vain, the coming destruction cannot be averted. And this judgment is to be executed in the Ammonites’ own country: they are to be destroyed at home.