They go to Peter and Andrew's house and Jesus cures Peter's sick mother-in-law. The house was presumably near the synagogue. She then gets up and helps Jesus and his companions. Attending to her guests would have been her social duty in the Jewish culture. Mark uses the term ', "to lift up", to describe Jesus' cure of her, followed by ', "she served", which some have seen as a theological message about Jesus' power requiring service. Karris argues for this event's historicity, perhaps based on an eyewitness. A story about Peter's mother-in-law might have survived due to the popularity of Peter among early Christians.