1. Acts 13:45 (ESV)
  2. Exposition

How did the Jews talk abusively against Paul?

Acts 13:45 (ESV)

45 But when the Jews saw the crowds, they were filled with jealousy and began to contradict what was spoken by Paul, reviling him.

A segment of the Jewish population slander Paul as being untrustworthy.1 Presumably they interrupt him as he speaks, or they respond to his teaching with accusations regarding his character and person.