Whatever
Jesus said, it was most likely in
Hebrew,
Aramaic, or
Greek. Most scholars will say that he spoke only one, though it's possible he spoke all three. Greek was the common
trade language during Jesus' time in that
region, and was used fairly extensively by the people.
Jesus' mother, though, most likely spoke Aramaic as it was the
language of the Jews. Scholarly Jewish discourse, however, was in Hebrew, and being Jewish, Jesus would have spent much of his youth studying the
Hebrew Bible.
That's all, assuming of course, that Jesus actually
existed.