1- Mark Chapter 1: John has been arrested and Jesus goes into Galilee. He is walking alongside the Sea of Galilee and he sees Simon (1) and Simon’s brother Andrew (2) casting their nets into the sea, for they are fishermen. And he tells them to come after him and “I will make you fishers of men.” after going a little farther, he sees James (3) the son of Zebedee and his brother John (4), while they are in their boat mending their nets, and without delay he calls them. So they leave their father Zebedee in the boat with the hired men and go off after him. And they go into Capernaum.
2- Mark Chapter 2: Jesus goes out alongside the sea and all the crowd keeps coming to him and he begins to teach them. And as he is passing by, he catches sight of Levi (5) the son of Alphaeus sitting at the tax office, and he says to him: “Be my follower.” At that he rises up and follows him. Later he is dining in his house, and many tax collectors and sinners are dining with Jesus and his disciples, for there are many of them who are following him.
3- Mark Chapter 3: he forms a group of 12, whom he also names apostles, those who are to accompany him and whom he will send out to preach and to have authority to expel demons. And the group of 12 that he forms are
- Simon, to whom he also gives the name Peter,
- James the son of Zebedee
- John the brother of James (he also gives these the name Boanerges, which means “Sons of Thunder”),
- Andrew,
- Philip,
- Bartholomew,
- Matthew,
- Thomas,
- James the son of Alphaeus,
- Thaddaeus,
- Simon the Cananaean,
- and Judas Iscariot, who later betrayed him.
So Mark tells about the first five and then he enumerates all of them.