Mark 1:16-19

And passing along by the sea of Galilee, he saw Simon and Andrew the brother of Simon casting a net in the sea; for they were fishers. And Jesus said unto them, Come ye after me, and I will make you to become fishers of men. And straightway they left the nets, and followed him. And going on a little further, he saw James the son of Zebedee, and John his brother, who also were in the boat mending the nets.