As he walked by the Sea of Galilee, he saw two brothers, Simon, who is called Peter, and Andrew his brother, casting a net into the sea—for they were fishermen.
And he said to them, "Follow me, and I will make you fish for people."
Immediately they left their nets and followed him.
As he went from there, he saw two other brothers, James son of Zebedee and his brother John, in the boat with their father Zebedee, mending their nets, and he called them.
Immediately they left the boat and their father, and followed him.
Jesus went throughout Galilee, teaching in their synagogues and proclaiming the good news of the kingdom and curing every disease and every sickness among the people.
References for Matthew 4:23
So his fame spread throughout all Syria, and they brought to him all the sick, those who were afflicted with various diseases and pains, demoniacs, epileptics, and paralytics, and he cured them.
And great crowds followed him from Galilee, the Decapolis, Jerusalem, Judea, and from beyond the Jordan.