I'm sorry, I don't recall ever mentioning Oracles either way — and is there anything saying what language they'd use.
Thus a return to that pure language for all who are subject thereto.
And you've yet to prove that pure language
is (a) a spoken language and not (e.g.) free of all guile, (b) that Hebrew is somehow special, and (c) that specialness requires God to use that language.
Prophecy means things, its not just a bag of loose words whose meaning is subject to broad interpretation.
I never said that prophecy doesn't mean anything; I just doubt that you particular interpretation is accurate.
Hebrew is the language that Yehova spoke, and inscribed, at Sinai.
What more evidence could anyone need?