http://www.hebrew4christians.com/Articles/Jesus_Hebrew/jesus_hebrew.html
This webpage should help clear up some of your questions. You come closest to being right suggesting the possibility that Hebrew was primarily spoken in Jerusalem while a dialect of Aramaic was the language of Galilee. When Jesus spoke to his Galilean disciples it was most likely in Aramaic, but he was fluent in Hebrew and Greek. The Samaritans spoke Hebrew. When Jesus spoke to Paul on the road to Damascus it was in Hebrew. Paul was fluent in Hebrew, and he used it when addressing the people of Jerusalem.
I recently read an excellent paper on this subject, and I can’t find it, though it should have been stored on this computer. There is plenty of research that lays to rest the misconception that Aramaic was the only language, or even the primary language of most Jews during the time of Jesus. Hebrew was very much alive and well, and spoken as a common language, in addition to being the language of the Torah and the temple.
“This webpage should help clear up some of your questions.”
I didn’t have any questions in post #12. I have no idea what questions you’re talking about.