Jesus goes to the Sea of Galilee and finds Simon (whom he will name Rock (Peter) in ) and his brother Andrew. They are fishing, a large business then in Galilee. He speaks the famous phrase "Come, follow me...and I will make you fishers of men". Some have argued their status as fishermen is metaphorical, based perhaps on , but Karris argues that their occupations as fishermen was historical and related by Mark to show the costliness of being a disciple, as they had to leave a presumably thriving business. Andrew was a disciple of John the Baptist according to John. He only appears three times in Mark, here, and in and . They follow him and then soon come upon James and John (whom he will name the Sons of Thunder in ), who also quickly join the group, "they left their father Zebedee in the boat with the hired men." Peter, James, and John will play a prominent part in several incidents in the Gospel. Mark does not relate that Jesus convinced them to follow him in any way. Mark simply has them follow him without question. Kilgallen argues that historically this calling was not so sudden, with perhaps a prior meeting, but Mark has shortened it for extra effect to emphasize total devotion to Jesus. John relates Jesus convincing Nathanael to join the group.