This phrase is used to mark the introduction of a new character into the story; in this case, a demon-possessed man. (See: [[rc://en/ta/man/translate/writing-participants]])
This belligerent response is an idiom that means: "What do we have in common?" or "What right do you have to bother us?" (See: [[rc://en/ta/man/translate/figs-idiom]])
# What do we have to do with you, Jesus of Nazareth?
This question could be written as a statement. AT: "What do you, Jesus of Nazareth, have to do with us!" or We have nothing to do with you, Jesus of Nazareth!" or "You have no right to bother us, Jesus of Nazareth!" (See: [[rc://en/ta/man/translate/figs-rquestion]])