Theophylact of Ohrid

For we must not allow any time to lapse, but at once follow the Lord. After these again, He catches James and John, because they also, though poor, supported the old age of their father. Wherefore there follows, And when he had gone a little farther thence, he saw James the son of Zebedee, &c. But they left their father, because he would have hindered them in following Christ. Do thou, also, when thou art hindered by thy parents, leave them, and come to God. It is shewn by this that Zebedee was not a believer; but the mother of the Apostles believed, for she followed Christ, when Zebedee was dead.