There is no place where Greek, or any other language but Hebrew has been the language of Juda, until they were dispersed from jerusalem.
The rest is Mystery Babylon critical theology (AKA “The Mystery of Iniquity). Confusion has always been the adversary’s chief method. The world is confused, and the Elect find the truth through the Holy Spirit.
That simply does not comport with historical fact. There is ample archaeological evidence in the way of surviving documents, inscriptions and ossuary carvings to indicate that Aramaic was the colloquial language in the first century and Hebrew was actually less used that both Aramaic and Hebrew outside of the Temple and Synagogues. I would highly recommend that you visit the Holy land and see the actual places and artifacts. Alternately, I can provide you with ample citations if you would like.
Peace be with you