And going on from there, he saw two other brothers, James the son of Zebedee, and John his brother, in a ship with Zebedee their father, mending their nets; and he called them.
All Commentaries on Matthew 4:21 Go To Matthew 4
Theophylact of Ochrid
AD 1107
in a boat with Zebedee their father: It is the greatest of virtues to care for one's father in his old age, and for the father to be supported by the just labors of his sons.
Mending their nets: They were poor and as they were unable to buy new nets, they were stitching together their old ones.